Explore topic-wise MCQs in Joint Entrance Exam - Main (JEE Main).

This section includes 8666 Mcqs, each offering curated multiple-choice questions to sharpen your Joint Entrance Exam - Main (JEE Main) knowledge and support exam preparation. Choose a topic below to get started.

5601.

\[(\sin \theta ,\cos \theta )\] and \[(3,\,2)\] lies on the same side of the line \[x+y=1\],  then \[\theta \] lies between                                [DCE 2005]

A.            \[(0,\,\,\pi /2)\]                        
B.            \[(0,\,\pi )\]
C.            \[(\pi /4,\pi /2)\]                      
D.            \[(0,\,\,\pi /4)\]
Answer» E.
5602.

The equation of the base of an equilateral triangle is \[x+y=2\] and the vertex is (2, -1). The length of the side of the triangle is [IIT 1973, 83, MP PET 1995; RPET 1999, 2000]

A. \[\sqrt{3/2}\]                            
B. \[\sqrt{2}\]
C. \[\sqrt{2/3}\]                            
D. None of these
Answer» D. None of these
5603.

The distance between the lines \[3x+4y=9\]and \[6x+8y=15\]is   [MNR 1982; RPET 1995; MP PET 2002]

A.            3/2 
B.            3/10
C.            6    
D.            None of these
Answer» C.            6    
5604.

The perpendicular distance of the straight line \[12x+5y=7\]from the origin is equal to   [Pb. CET 2002]

A.            \[\frac{7}{13}\]                         
B.            \[\frac{12}{13}\]
C.            \[\frac{5}{13}\]                         
D.            \[\frac{1}{13}\]
Answer» B.            \[\frac{12}{13}\]
5605.

In what ratio the line \[y-x+2=0\]divides the line joining the points (3, -1) and (8, 9)                                        [Karnataka CET 2002]

A. 0.0430555555555556
B. 0.0840277777777778
C. 0.0854166666666667
D. 0.127777777777778
Answer» D. 0.127777777777778
5606.

The distance of point (-2, 3) from the line \[x-y=5\]is [Pb. CET 2001]

A. \[5\sqrt{2}\]                             
B. \[2\sqrt{5}\]
C. \[3\sqrt{5}\]                             
D. \[5\sqrt{3}\]
Answer» B. \[2\sqrt{5}\]
5607.

The length of perpendicular from the point \[(a\cos \alpha ,a\sin \alpha )\] upon the straight line \[y=x\tan \alpha +c,\] \[c>0\] is [MP PET 2004]

A.            \[c\cos \alpha \]                       
B.            \[c{{\sin }^{2}}\alpha \]
C.            \[c{{\sec }^{2}}\alpha \]           
D.            \[c{{\cos }^{2}}\alpha \]
Answer» B.            \[c{{\sin }^{2}}\alpha \]
5608.

The position of the point (8,-9) with respect to the lines \[2x+3y-4=0\] and \[6x+9y+8=0\] is

A.            Point lies on the same side of the lines
B.            Point lies on the different sides of the line
C.            Point lies on one of the line
D.            None of these
Answer» B.            Point lies on the different sides of the line
5609.

Distance between the parallel lines \[3x+4y+7=0\] and \[3x+4y-5=0\] is                                            [RPET 2003]

A.            \[\frac{2}{5}\]                           
B.            \[\frac{12}{5}\]
C.            \[\frac{5}{12}\]                         
D.            \[\frac{3}{5}\]
Answer» C.            \[\frac{5}{12}\]                         
5610.

Distance between the lines \[5x+3y-7=0\] and \[15x+9y+14=0\] is                                     [Kerala (Engg.) 2002]

A.            \[\frac{35}{\sqrt{34}}\]            
B.            \[\frac{1}{3\sqrt{34}}\]
C.            \[\frac{35}{3\sqrt{34}}\]          
D.            \[\frac{35}{2\sqrt{34}}\]
Answer» D.            \[\frac{35}{2\sqrt{34}}\]
5611.

The distance of the lines \[2x-3y=4\]from the point (1, 1) measured parallel to the line \[x+y=1\] is               [Orissa JEE 2002]

A.            \[\sqrt{2}\]                               
B.            \[\frac{5}{\sqrt{2}}\]
C.            \[\frac{1}{\sqrt{2}}\]                
D.            6
Answer» B.            \[\frac{5}{\sqrt{2}}\]
5612.

The distance of the point (-2, 3) from the line \[x-y=5\]is [MP PET 2001]

A.            \[5\sqrt{2}\]                             
B.            \[2\sqrt{5}\]
C.            \[3\sqrt{5}\]                             
D.            \[5\sqrt{3}\]
Answer» B.            \[2\sqrt{5}\]
5613.

The length of the perpendicular drawn from origin upon the straight line \[\frac{x}{3}-\frac{y}{4}=1\]is                                         [MP PET 1997]

A.            \[2\frac{2}{5}\]                         
B.            \[3\frac{1}{5}\]
C.            \[4\frac{2}{5}\]                         
D.            \[3\frac{2}{5}\]
Answer» B.            \[3\frac{1}{5}\]
5614.

If \[2p\] is the length of perpendicular from the origin to the lines \[\frac{x}{a}+\frac{y}{b}=1\], then \[{{a}^{2}},8{{p}^{2}},{{b}^{2}}\]are in

A.            A. P.                                           
B.            G.P.
C.            H. P.
D.            None of these
Answer» D.            None of these
5615.

The distance between the lines \[3x-2y=1\]and \[6x+9=4y\] is                                                           [MP PET 1998]

A.            \[\frac{1}{\sqrt{52}}\]              
B.            \[\frac{11}{\sqrt{52}}\]
C.            \[\frac{4}{\sqrt{13}}\]              
D.            \[\frac{6}{\sqrt{13}}\]
Answer» C.            \[\frac{4}{\sqrt{13}}\]              
5616.

The ratio in which the line \[3x+4y+2=0\] divides the distance between \[3x+4y+5=0\] and \[3x+4y-5=0\], is

A.            \[7:3\]                                       
B.            3 : 7
C.            \[2:3\]                                       
D.            None of these
Answer» C.            \[2:3\]                                       
5617.

The vertex of an equilateral triangle is (2,-1) and the equation of its base in\[x+2y=1\]. The length of its sides is    [UPSEAT 2003]

A.            \[4/\sqrt{15}\]
B.            \[2/\sqrt{15}\]
C.            \[4/3\sqrt{3}\]                          
D.            \[1/\sqrt{5}\]
Answer» C.            \[4/3\sqrt{3}\]                          
5618.

The distance between \[4x+3y=11\] and \[8x+6y=15\], is    [AMU 1979; MNR 1987; UPSEAT 2000]

A.            \[\frac{7}{2}\]                          
B.            4
C.            \[\frac{7}{10}\]                       
D.            None of these
Answer» D.            None of these
5619.

The distance between two parallel lines \[3x+4y-8=0\]and \[3x+4y-3=0\], is given by                            [MP PET 1984]

A.            4    
B.            5
C.            3    
D.            1
Answer» E.
5620.

The length of perpendicular from (3, 1) on line \[4x+3y+20=0\], is                  [RPET 1989; MP PET 1984]

A.            6    
B.            7
C.            5    
D.            8
Answer» C.            5    
5621.

The points on the x-axis whose perpendicular distance from the line \[\frac{x}{a}+\frac{y}{b}=1\] is a, are            [RPET 2001; MP PET 2003]

A.            \[\left[ \frac{a}{b}(b\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]               
B.            \[\left[ \frac{b}{a}(b\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]
C.            \[\left[ \frac{a}{b}(a\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]               
D.            None of these
Answer» B.            \[\left[ \frac{b}{a}(b\pm \sqrt{{{a}^{2}}+{{b}^{2}}}),\,0 \right]\]
5622.

\[x\sqrt{1+y}+y\sqrt{1+x}=0\], then \[\frac{dy}{dx}=\] [RPET 1989, 96]

A.            \[1+x\]
B.            \[{{(1+x)}^{-2}}\]
C.            \[-{{(1+x)}^{-1}}\]
D.            \[-{{(1+x)}^{-2}}\]
Answer» E.
5623.

If \[x={{e}^{y+{{e}^{y+....t\text{o}\,\,\infty }}}}\], \[x>0,\] then \[\frac{dy}{dx}\] is         [AIEEE 2004]

A.            \[\frac{1+x}{x}\]
B.            \[\frac{1}{x}\]
C.                 \[\frac{1-x}{x}\]
D.                 \[\frac{x}{1+x}\]
Answer» D.                 \[\frac{x}{1+x}\]
5624.

If \[{{x}^{m}}{{y}^{n}}=2{{(x+y)}^{m+n}},\] the value of \[\frac{dy}{dx}\] is         [MP PET 2003]

A.            \[x+y\]
B.            \[x/y\]
C.            \[y/x\]
D.            \[x-y\]
Answer» D.            \[x-y\]
5625.

The derivative of \[y={{x}^{\ln x}}\] is                                                                    [AMU 2000]

A.            \[{{x}^{\ln x}}\ln x\]
B.            \[{{x}^{\text{ln}\,x-1}}\text{ln}\,x\]
C.            \[2{{x}^{\ln x-1}}\ln \,x\]
D.            \[{{x}^{\ln x-2}}\]
Answer» D.            \[{{x}^{\ln x-2}}\]
5626.

If \[{{2}^{x}}+{{2}^{y}}={{2}^{x+y}},\]then the value of \[\frac{dy}{dx}\] at \[x=y=1\]is                    [Karnataka CET 2000]

A.            0
B.            ? 1
C.            1
D.            2
Answer» C.            1
5627.

If \[y={{2}^{1/{{\log }_{x}}4}}\], then x is equal to      [Roorkee 1998]

A.            \[\sqrt{y}\]
B.            \[y\]
C.            \[{{y}^{2}}\]
D.            \[{{y}^{4}}\]
Answer» D.            \[{{y}^{4}}\]
5628.

If \[y=\frac{1}{4}{{u}^{4}},u=\frac{2}{3}{{x}^{3}}+5\], then \[\frac{dy}{dx}=\]         [DSSE 1979]

A.            \[\frac{1}{27}{{x}^{2}}{{(2{{x}^{3}}+15)}^{3}}\]
B.            \[\frac{2}{27}x{{(2{{x}^{3}}+5)}^{3}}\]
C.            \[\frac{2}{27}{{x}^{2}}{{(2{{x}^{3}}+15)}^{3}}\]
D.            None of these
Answer» D.            None of these
5629.

 \[y={{(\tan x)}^{{{(\tan x)}^{\tan x}}}},\] then at\[x=\frac{\pi }{4}\], the value of \[\frac{dy}{dx}=\]             [WB JEE 1990]

A.            0
B.            1
C.            2
D.            None of these
Answer» D.            None of these
5630.

 If \[{{x}^{y}}.{{y}^{x}}=1\], then \[\frac{dy}{dx}\]=

A.            \[\frac{y\,(y+x\log y)}{x(y\log x+x)}\]
B.            \[\frac{y\,(x+y\log x)}{x(y+x\log y)}\]
C.            \[-\frac{y(y+x\log y)}{x(x+y\log x)}\]
D.            None of these
Answer» D.            None of these
5631.

If \[y={{\sqrt{x}}^{{{\sqrt{x}}^{\sqrt{x}....\infty }}}}\], then \[\frac{dy}{dx}=\]

A.            \[\frac{{{y}^{2}}}{2x-2y\log x}\]
B.            \[\frac{{{y}^{2}}}{2x+\log x}\]
C.            \[\frac{{{y}^{2}}}{2x+2y\log x}\]
D.            None of these
Answer» E.
5632.

If \[y={{(\tan x)}^{\cot x}}\], then \[\frac{dy}{dx}\backslash \]=                                [AISSE 1985]

A.            \[y\cos \text{e}{{\text{c}}^{2}}x(1-\log \tan x)\]
B.            \[y\,\text{cos}\text{e}{{\text{c}}^{2}}x(1+\log \tan x)\]
C.            \[y\cos \text{e}{{\text{c}}^{2}}x(\log \tan x)\]
D.            None of these
Answer» B.            \[y\,\text{cos}\text{e}{{\text{c}}^{2}}x(1+\log \tan x)\]
5633.

\[\frac{d}{dx}\{{{(\sin x)}^{\log x}}\}=\]                                                                [DSSE 1984]

A.            \[{{(\sin x)}^{\log x}}\left[ \frac{1}{x}\log \sin x+\cot x \right]\]
B.            \[{{(\sin x)}^{\log x}}\left[ \frac{1}{x}\log \sin x+\cot x\log x \right]\]
C.            \[{{(\sin x)}^{\log x}}\left[ \frac{1}{x}\log \sin x+\log x \right]\]
D.            None of these
Answer» C.            \[{{(\sin x)}^{\log x}}\left[ \frac{1}{x}\log \sin x+\log x \right]\]
5634.

If \[y=\frac{\sqrt{x}{{(2x+3)}^{2}}}{\sqrt{x+1}},\]then \[\frac{dy}{dx}=\]                               [AISSE 1986]

A.            \[y\text{ }\left[ \frac{1}{2x}+\frac{4}{2x+3}-\frac{1}{2(x+1)} \right]\]
B.            \[y\text{ }\left[ \frac{1}{3x}+\frac{4}{2x+3}+\frac{1}{2(x+1)} \right]\]         
C.            \[y\text{ }\left[ \frac{1}{3x}+\frac{4}{2x+3}+\frac{1}{x+1} \right]\]               
D.            None of these
Answer» B.            \[y\text{ }\left[ \frac{1}{3x}+\frac{4}{2x+3}+\frac{1}{2(x+1)} \right]\]         
5635.

\[\frac{d}{dx}\{{{(\sin x)}^{x}}\}\]=                    [DSSE 1985, 87; AISSE 1983]

A.            \[\left[ \frac{x\cos x+\sin x\log \sin x}{\sin x} \right]\]
B.            \[{{(\sin x)}^{x}}\left[ \frac{x\cos x+\sin x\log \sin x}{\sin x} \right]\]
C.            \[{{(\sin x)}^{x}}\left[ \frac{x\sin x+\sin x\log \sin x}{\sin x} \right]\]
D.            None of these
Answer» C.            \[{{(\sin x)}^{x}}\left[ \frac{x\sin x+\sin x\log \sin x}{\sin x} \right]\]
5636.

If \[\cos (x+y)=y\sin x,\]then \[\frac{dy}{dx}=\]                                                [AI CBSE 1979]

A.            \[-\frac{\sin (x+y)+y\cos x}{\sin x+\sin x+y)}\]
B.            \[\frac{\sin (x+y)+y\cos x}{\sin x+\sin (x+y)}\]
C.            \[-\frac{\sin (x+y)+y\cos x}{\sin x+\sin x+y)}\]
D.        None of these
Answer» B.            \[\frac{\sin (x+y)+y\cos x}{\sin x+\sin (x+y)}\]
5637.

If \[y={{x}^{\sin x}},\]then \[\frac{dy}{dx}=\]                                                               [DSSE 1983, 84]

A.            \[\frac{x\cos x.\log x+\sin x}{x}.{{x}^{\sin x}}\]
B.            \[\frac{y[x\cos x.\log x+\cos x]}{x}\]
C.            \[y[x\sin x.\log x+\cos x]\]
D.            None of these
Answer» B.            \[\frac{y[x\cos x.\log x+\cos x]}{x}\]
5638.

If \[y={{x}^{({{x}^{x}})}}\], then \[\frac{dy}{dx}=\]                                                [AISSE 1989]

A.            \[y[{{x}^{x}}(\log ex).\log x+{{x}^{x}}]\]                         
B.            \[y[{{x}^{x}}(\log ex).\log x+x]\]
C.            \[y[{{x}^{x}}(\log ex).\log x+{{x}^{x-1}}]\]
D.            \[y[{{x}^{x}}({{\log }_{e}}x).\log x+{{x}^{x-1}}]\]
Answer» D.            \[y[{{x}^{x}}({{\log }_{e}}x).\log x+{{x}^{x-1}}]\]
5639.

If \[{{x}^{y}}={{y}^{x}},\]then \[\frac{dy}{dx}=\]                       [DSSE 1996; MP PET 1997]

A.            \[\frac{y(x{{\log }_{e}}y+y)}{x(y{{\log }_{e}}x+x)}\]
B.            \[\frac{y(x{{\log }_{e}}y-y)}{x(y{{\log }_{e}}x-x)}\]
C.            \[\frac{x(x{{\log }_{e}}y-y)}{y(y{{\log }_{e}}x-x)}\]
D.            \[\frac{x(x{{\log }_{e}}y+y)}{y(y{{\log }_{e}}x+x)}\]
Answer» C.            \[\frac{x(x{{\log }_{e}}y-y)}{y(y{{\log }_{e}}x-x)}\]
5640.

If  \[y={{\left( 1+\frac{1}{x} \right)}^{x}}\], then \[\frac{dy}{dx}=\]                                         [BIT  Ranchi 1992]

A.            \[{{\left( 1+\frac{1}{x} \right)}^{x}}\left[ \log \left( 1+\frac{1}{x} \right)-\frac{1}{1+x} \right]\]
B.            \[{{\left( 1+\frac{1}{x} \right)}^{x}}\left[ \log \left( 1+\frac{1}{x} \right) \right]\]
C.            \[{{\left( x+\frac{1}{x} \right)}^{x}}\left[ \log (x-1)-\frac{x}{x+1} \right]\]
D.            \[{{\left( 1+\frac{1}{x} \right)}^{x}}\left[ \log \left( 1+\frac{1}{x} \right)+\frac{1}{1+x} \right]\]
Answer» B.            \[{{\left( 1+\frac{1}{x} \right)}^{x}}\left[ \log \left( 1+\frac{1}{x} \right) \right]\]
5641.

The differential equation satisfied by the function \[y=\sqrt{\sin x+\sqrt{\sin x+\sqrt{\sin x+.....\infty }}}\], is [MP PET 1998; Pb. CET 2001]

A.            \[(2y-1)\frac{dy}{dx}-\sin x=0\]
B.            \[(2y-1)\cos x+\frac{dy}{dx}=0\]
C.             \[(2y-1)\cos x-\frac{dy}{dx}=0\]
D.  \[(2y-1)\cos x+\frac{dy}{dx}=0\]
Answer» E.
5642.

If \[y={{({{x}^{x}})}^{x}}\], then \[\frac{dy}{dx}\]=

A.            \[{{({{x}^{x}})}^{x}}(1+2\log x)\]
B.            \[{{({{x}^{x}})}^{x}}(1+\log x)\]
C.          \[x{{({{x}^{x}})}^{x}}(1+2\log x)\]
D.            \[x\,{{({{x}^{x}})}^{x}}(1+\log x)\]
Answer» D.            \[x\,{{({{x}^{x}})}^{x}}(1+\log x)\]
5643.

If \[y={{x}^{\sqrt{x}}},\]then \[\frac{dy}{dx}\]=

A.            \[{{x}^{\sqrt{x}}}\frac{2+\log x}{2\sqrt{x}}\]
B.            \[{{x}^{\sqrt{x}}}\frac{2+\log x}{\sqrt{x}}\]
C.            \[\frac{2+\log x}{2\sqrt{x}}\]
D.            None of these
Answer» B.            \[{{x}^{\sqrt{x}}}\frac{2+\log x}{\sqrt{x}}\]
5644.

If \[x=a{{t}^{2}},y=2at\], then \[\frac{{{d}^{2}}y}{d{{x}^{2}}}=\]                   [Karnataka CET 1993]

A.            \[-\frac{1}{{{t}^{2}}}\]
B.            \[\frac{1}{2a{{t}^{3}}}\]
C.            \[-\frac{1}{{{t}^{3}}}\]
D.            \[-\frac{1}{2a{{t}^{3}}}\]
Answer» E.
5645.

If \[y=\sqrt{\log x+\sqrt{\log x+\sqrt{\log x+.....\infty }}}\], then \[\frac{dy}{dx}=\]

A.            \[\frac{x}{2y-1}\]
B.            \[\frac{x}{2y+1}\]
C.            \[\frac{1}{x(2y-1)}\]
D.            \[\frac{1}{x(1-2y)}\]
Answer» D.            \[\frac{1}{x(1-2y)}\]
5646.

If \[{{y}^{x}}+{{x}^{y}}={{a}^{b}}\],then \[\frac{dy}{dx}=\]

A.            \[-\frac{y{{x}^{y-1}}+{{y}^{x}}\log y}{x{{y}^{x-1}}+{{x}^{y}}\log x}\]
B.            \[\frac{y{{x}^{y-1}}+{{y}^{x}}\log y}{x{{y}^{x-1}}+{{x}^{y}}\log x}\]
C.            \[-\frac{y{{x}^{y-1}}+{{y}^{x}}}{x{{y}^{x-1}}+{{x}^{y}}l}\]
D.            \[\frac{y{{x}^{y-1}}+{{y}^{x}}}{x{{y}^{x-1}}+{{x}^{y}}}\]
Answer» B.            \[\frac{y{{x}^{y-1}}+{{y}^{x}}\log y}{x{{y}^{x-1}}+{{x}^{y}}\log x}\]
5647.

If \[y=\sqrt{\frac{(x-a)(x-b)}{(x-c)(x-d)}}\], then \[\frac{dy}{dx}=\]

A.            \[\frac{y}{2}\left[ \frac{1}{x-a}+\frac{1}{x-b}-\frac{1}{x-c}-\frac{1}{x-d} \right]\]
B.            \[y\,\left[ \frac{1}{x-a}+\frac{1}{x-b}-\frac{1}{x-c}-\frac{1}{x-d} \right]\]
C.            \[\frac{1}{2}\left[ \frac{1}{x-a}+\frac{1}{x-b}-\frac{1}{x-c}-\frac{1}{x-d} \right]\]
D.            None of these
Answer» B.            \[y\,\left[ \frac{1}{x-a}+\frac{1}{x-b}-\frac{1}{x-c}-\frac{1}{x-d} \right]\]
5648.

If \[y=\log {{x}^{x}},\]then \[\frac{dy}{dx}=\]                                                          [MNR 1978]

A.            \[{{x}^{x}}(1+\log x)\]
B.            \[\log (ex)\]
C.            \[\log \left( \frac{e}{x} \right)\]
D.            None of these
Answer» C.            \[\log \left( \frac{e}{x} \right)\]
5649.

If \[{{2}^{x}}+{{2}^{y}}={{2}^{x+y}}\], then \[\frac{dy}{dx}=\]        [MP PET 1995; AMU 2000]

A.            \[{{2}^{x-y}}\frac{{{2}^{y}}-1}{{{2}^{x}}-1}\]
B.            \[{{2}^{x-y}}\frac{{{2}^{y}}-1}{1-{{2}^{x}}}\]
C.            \[\frac{{{2}^{x}}+{{2}^{y}}}{{{2}^{x}}-{{2}^{y}}}\]
D.            None of these
Answer» C.            \[\frac{{{2}^{x}}+{{2}^{y}}}{{{2}^{x}}-{{2}^{y}}}\]
5650.

If \[{{x}^{y}}={{e}^{x-y}}\], then \[\frac{dy}{dx}=\]             [MP PET 1987, 2004; MNR 1984; Roorkee 1954; BIT Ranchi 1991; RPET 2000]

A.            \[\log x.{{[\log (ex)]}^{-2}}\]
B.            \[\log x.{{[\log (ex)]}^{2}}\]
C.            \[\log x.{{(\log x)}^{2}}\]
D.            None of these
Answer» B.            \[\log x.{{[\log (ex)]}^{2}}\]