Explore topic-wise MCQs in General Knowledge.

This section includes 200950 Mcqs, each offering curated multiple-choice questions to sharpen your General Knowledge knowledge and support exam preparation. Choose a topic below to get started.

2051.

Which of the following expressions is that of a simple harmonic progressive wave?

A. a sin wt
B. a sin (wt) cos (kx)
C. a sin (wt - kx)
D. a cos kx
Answer» D. a cos kx
2052.

The velocity of sound is measured in hydrogen and oxygen at a certain temperature. The ratio of the velocities is?

A. 1:1
B. 1:2
C. 1:4
D. 4:1
Answer» E.
2053.

The speed of sound in air at N.T.P. is 300 m/s. If air pressure becomes four times, then the speed of sound will be?

A. 150 m/s
B. 300 m/s
C. 600 m/s
D. 1200 m/s
Answer» C. 600 m/s
2054.

Find the income per cent on 10% debentures of par values Rs. 120 available in the market for Rs. 150?

A. 9%
B. 7%
C. 8%
D. 6%
Answer» D. 6%
2055.

A invested some money in 10% stock at 96. If B want to invest in an equally good 12% stock, he must purchase a stock worth of?

A. Rs. 80
B. Rs. 120
C. Rs. 115.20
D. Rs. 125.40
Answer» D. Rs. 125.40
2056.

Meena bought Rs. 36000 of 15/2%. stock at 92 and sold it when its price rose to Rs. 933/4%. Find her gain percent?

A. 1.9%
B. 2.3%
C. 2.9%
D. 1.4%
Answer» B. 2.3%
2057.

Find the rate of dividend paid by the company,If the total divided declared by the company is Rs. 62500, a company issued 50000 shares of par value Rs. 10 each?

A. 17/2%
B. 12%
C. 25/2%
D. 55/4%
Answer» D. 55/4%
2058.

A man sells 5000 common shares of a Company x (each of par value Rs. 10), which pays a dividend of 20% at Rs. 30 per share. He invests the sale proceeds in ordinary shares of Company Y (each of par value Rs. 25) that pays a dividend of 15%. If the market value of Company Y is Rs. 40, find the number of shares of Company Y purchased by the man?

A. Rs. 3850
B. Rs. 3700
C. Rs. 3750
D. Rs. 3800
Answer» D. Rs. 3800
2059.

Two tuning forks of frequencies 256 and 258 vibrations/second are sounded together. Then the time interval between two consecutive maxima heard by an observer is ?

A. 2 sec
B. .5 sec
C. 250 sec
D. 252 sec
Answer» C. 250 sec
2060.

Find the income percent of a buyer on 5% debentures of face value Rs. 95 and available in the market for Rs. 125?

A. 4.8%
B. 3.8%
C. 5.8%
D. 2.8%
Answer» C. 5.8%
2061.

What investment will be required to purchase Rs. 90000 of 8% stock a 110?

A. Rs. 88000
B. Rs. 88500
C. Rs. 99000
D. Rs. 9950
Answer» D. Rs. 9950
2062.

Two wave having the intensities in the ratio of 9: 1 produce interference. The ratio of maximum to minimum intensity is equal to?

A. 10 : 8
B. 9 : 1
C. 4 : 1
D. 2 : 1
Answer» D. 2 : 1
2063.

The velocity of sound is maximum in ?

A. Water
B. Air
C. Vacuum
D. Metal
Answer» E.
2064.

A company declared an annual dividend of 10%. Find the annual dividend of Ram owing 1500 shares of the company of per value Rs. 10 each?

A. Rs. 1400
B. Rs. 1700
C. Rs. 1500
D. Rs. 1600
Answer» D. Rs. 1600
2065.

A man bought 20 shares of Rs. 50 at 5 discount, the rate of discount being 19/4%.The rate of interest obtained is?

A. 19/ 4%
B. 5.28%
C. 13/4%
D. 4.95%
Answer» D. 4.95%
2066.

Loudness of a note of sound is ?

A. Directly proportional to amplitude of the wave
B. Directly proportional to square of amplitude of wave
C. Directly proportional to velocity of the wave
D. Directly proportional to square of velocity of the wave
Answer» C. Directly proportional to velocity of the wave
2067.

Sakshi invests a part of Rs.12,000 in 12% stock at Rs. 120 and the remainder in 15% stock at Rs. 125. If his total dividend per annum is Rs. 1360, how much does he invest in 12% stock at Rs. 120?

A. Rs. 4000
B. Rs. 5500
C. Rs. 45000
D. Rs. 6000
Answer» B. Rs. 5500
2068.

The capital of a company is made up of 50000 preferred shares with dividend of 20% and 20000 common shares, the par value of each type of share being Rs. 10. The company has a total profit of Rs. 180000 out of which Rs. 30000 were kept in reverse fund and the remaining distributed to shareholders. Find the dividend percent to the common shareholders?

A. Rs. 24%
B. Rs. 25%
C. Rs. 20%
D. Rs. 30%
Answer» C. Rs. 20%
2069.

A man invested Rs. 14,400 in Rs. 100 shares of a company at 20% premium. If the company declares 5% dividend at the end of the year, then how much does he get?

A. Rs. 500
B. Rs. 650
C. Rs. 600
D. Rs. 720
Answer» D. Rs. 720
2070.

In the longitudinal waves the direction of vibration in medium of particle is ?

A. Perpendicular to propagation of wave
B. Parallel to propagation
C. Different from each other
D. Variable for time to time.
Answer» C. Different from each other
2071.

With the propagation of a longitudinal wave through a material medium the quantities transmitted in the propagation direction are?

A. Energy, momentum and mass
B. Energy
C. Energy and mass
D. Energy and linear momentum
Answer» E.
2072.

Sound waves having the following frequencies are audible to human beings ?

A. 5 c/s
B. 27000 c/s
C. 5000 c/s
D. 50,000 c/s
Answer» D. 50,000 c/s
2073.

A person buys 19/2 Stock of Rs. 72000 at 144. Find his annual income?

A. Rs. 6640
B. Rs. 6900
C. Rs. 6840
D. Rs. 7240
Answer» D. Rs. 7240
2074.

Shyam purchased 12000 shares of a company, of par value Rs. 10 each, paying an annual dividend of 15% at such a price, that she gets 10% on her investment. Find the market value of a share?

A. Rs. 25
B. Rs. 20
C. Rs. 15
D. Rs. 14
Answer» D. Rs. 14
2075.

Jatin invested Rs. 27260 in buying Rs. 100 shares of a company at Rs. 116 each. If the company paid 16% dividend at the end of the year. Find his income from the dividend?

A. Rs. 3560
B. Rs. 3760
C. Rs. 2760
D. Rs. 3660
Answer» C. Rs. 2760
2076.

When a compression is incident on rigid wall it is reflected as ?

A. Compression with a phase change of 
B. Compression with no phase change
C. Rarefaction with a phase change of 
D. Rarefaction with no phase change
Answer» B. Compression with no phase change
2077.

Find the investment to get an income of Rs. 1938 from 19/2% Stock at 90 (Brokerage 1%)?

A. Rs. 19642.60
B. Rs. 18543.60
C. Rs. 17543.00
D. Rs. 18600.60
Answer» D. Rs. 18600.60
2078.

The wavelength of sound in air is 10 cm. its frequency is, (Given velocity of sound = 330 m/s) ?

A. 330 cycles per second
B. 3.3 kilo cycles per second
C. 30 mega-cycles per second
D. 3 × 105 cycles per second
Answer» C. 30 mega-cycles per second
2079.

Find the income on 12% stock of Rs. 60000 purchased at Rs. 110?

A. Rs. 7200
B. Rs. 7400
C. Rs. 7500
D. Rs. 8200
Answer» B. Rs. 7400
2080.

In these option, 11% stock at 143 or 37/4%. Stock at 117, which is better investment?

A. 11% stock at 143
B. 37/4%Stock at 117
C. Both are equally goodsCannot be compared, as the total amount of investment is not given
D. Rs. 5600
Answer» E.
2081.

Which one of the following cannot represent a traveling wave/

A. y  f (x  t
B. y  ym sin k (x  t
C. y  ym log (x  t)
D. y  f (x2  t2)
Answer» D. y  f (x2  t2)
2082.

Seema had 50 preferred shares and 400 common shares of par value Rs. 100 each. If the dividend declared on preferred shares is 10% per annum and a semi-annual dividend of 7.5% is on common shares find the annual dividend received by Seema?

A. Rs. 7500
B. Rs. 8500
C. Rs. 6500
D. Rs. 5500
Answer» D. Rs. 5500
2083.

Two tuning forks A and B vibrating simultaneously produce 5 beats. Frequency of B is 512 Hz. It is seen that if one arm of A is filed, then the number of beats increases. Frequency of A will be?

A. 502 Hz
B. 507 Hz
C. 517 Hz
D. 522 Hz
Answer» D. 522 Hz
2084.

A company has issued 10000 preferred shares and 50000 common shares both of par value Rs. 100 each. The dividend on a preferred share and a common share is 12% and 17.6%, respectively. The company had a total profit of 15 lakh rupees out of which some amount was kept in reverse fund and the remaining disturbed as dividend. Find the amount kept in reserve fund?

A. Rs. 5 lakh
B. Rs. 6.5 lakh
C. Rs. 6 lakh
D. Rs. 5.5 lakh
Answer» B. Rs. 6.5 lakh
2085.

A company declared a semi-annual dividend of 15/2 %. Find the annual dividend of Chetan, owing 1250 shares of the company having a par value of Rs. 10 each?

A. Rs. 1875
B. Rs. 1680
C. Rs. 1757
D. Rs. 1575
Answer» B. Rs. 1680
2086.

A man invested Rs. 50490 in 5% stock at 99 and sold it when the price rose to Rs. 102. He invested the sale proceeds in 8% stock at 96. Find the change in man’s income (Brokerage: Rs. 3)?

A. Rs. 1485
B. Rs. 1385
C. Rs. 1585
D. Rs. 1685
Answer» B. Rs. 1385
2087.

Raja invested Rs. 99000 in 15/2% Stocks at 163/2(Brokerage: Re. 1). Find Ram’s annual income from his investment?

A. Rs. 9500
B. Rs. 10500
C. Rs. 10000
D. Rs. 9000
Answer» E.
2088.

Whichnone of the following is a correct statement?

A. Q1, Q2, Q3, … are in A.P. with common difference 5
B. Q1, Q2, Q3, … are in A.P. with common difference 6 (
C. Q1, Q2, Q3, … are in A.P. with common difference 11
D. Q1 = Q2 = Q3 =
Answer» C. Q1, Q2, Q3, … are in A.P. with common difference 11
2089.

Tangents are drawn from the point (17, 7) to the circle x2 y2 = 169.STATEMENT -1 : The tangents are mutually perpendicular.becauseSTATEMENT -2 : The locus of the points fromnwhich mutually perpendicular tangents can be drawn to the givencircle is x2 y2 = 338

A. Statement -1 is True, Statement -2 is true; Statement-2 is a correct explanation for Statement-1
B. Statement -1 is True, Statement -2 is true; Statement-2 is NOT a correct explanation for Statement-1
C. Statement -1 is True, Statement -2 is False
D. Statement -1 is False, Statement -2 is True
Answer» B. Statement -1 is True, Statement -2 is true; Statement-2 is NOT a correct explanation for Statement-1
2090.

Let F(x) be an indefinite integral of sin2x.STATEMENT -1 : The function F(x) satisfies F(x π) =F(x) for all real xbecauseSTATEMENT -2 : sin2(x π) = sin2x for all real x.

A. Statement -1 is True, Statement -2 is True; Statement-2 is a correct explanation for Statement-1
B. Statement -1 is True, Statement -2 is True; Statement
C. Statement -1 is True, Statement -2 is False
D. Statement -1 is False, Statement -2 is True
Answer» E.
2091.

A, B and C enter into a partnership and their shres are in the ratiot1/2:t1/3:t1/4 .After 2 months, A withdraws half of his capital and after 10 months, a profit of Rs. 378 is divided among them. What is B’s share?

A. Rs. 129
B. Rs. 156
C. Rs. 144
D. Rs. 168
Answer» D. Rs. 168
2092.

One Indian and four American men and their wives are to be seated randomly around a circular table. Then theconditional probability that the Indian man is seated adjacent to his wife given that each American man is seatedadjacent to his wife is?

A. 1/2
B. 1/3
C. 2/5
D. 1/5
Answer» D. 1/5
2093.

A man walks a distance of 3 units from the origin towards the north-east (N 45° E) direction. From there, he walks adistance of 4 units towards the north-west (N 45° W) direction to reach a point P. Then the position of P in the Argand plane is

A. 3eiπ/4 + 4i
B. 3 − 4i) eiπ/4
C. (4 + 3i) eiπ/4
D. 3 + 4i) eiπ/4
Answer» E.
2094.

The number of distinct real values of λ, for which the vectors − λ2ˆi ˆj ˆk , ˆi − λ2ˆj ˆk and ˆi ˆj − λ2ˆk acoplanar, is

A. 0
B. 1
C. 2
D. 3
Answer» D. 3
2095.

The tangent to the curve y = ex drawn at the point (c, ec) intersects the line joining the points (c − 1, ec−1) and (c 1, ec 1)

A. on the left of x = c
B. on the right of x = c
C. at no point
D. at all points
Answer» B. on the right of x = c
2096.

A, B and C jointly thought of engaging themselves in a business venture. It was agreed that A would invest Rs. 6500 for 6 months, B, Rs. 8400 for 5 months and C, Rs. 10,000 for 3 months. A wants to be the working member for which he was to receive 5% of the profits. The profit earned was Rs. 7400 Calculate the share of B in the profit?

A. Rs. 1900
B. Rs. 2800
C. Rs. 2660
D. Rs. 2840
Answer» D. Rs. 2840
2097.

The number of solutions of the pair of equations2 sin2θ − cos2θ =02 cos2θ − 3 sinθ =0in the interval [0, 2π] is

A. 00
B. 1
C. 2
D. 4
Answer» D. 4
2098.

STATEMENT-1: Boron always forms covalent bond.STATEMENT-2: The small size of B3 favours formation of covalent bond.

A. Statement-1 is True, Statement-2 is True; Statement-2 is a correct explanation for Statement-1
B. Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
C. Statement-1 is True, Statement-2 is True.
D. Statement-1 is False, Statement-2 is True.
Answer» B. Statement-1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1.
2099.

A hyperbola, having the transverse axis of length 2 sinθ, is confocal with the ellipse 3x2 4y2 = 12. Then its equation is?

A. x2 cosec2θ − y2 sec2θ = 1
B. x2 sec2θ − y2 cosec2θ = 1
C. x2 sin2θ − y2 cos2θ = 1
D. x2 cos2θ − y2 sin2θ = 1
Answer» B. x2 sec2θ − y2 cosec2θ = 1
2100.

Match the complexes in Column-I with their properties listed in Column-II.

A. Co(NH3)4(H2O)2]Cl2(p) geometrical isomers
B. Pt(NH3)2Cl2](q) paramagnetic
C. [Co(H2O)5Cl]Cl(r) diamagnetic
D. Ni(H2O)6]Cl2(s) metal ion with +2 oxidation state
Answer» B. Pt(NH3)2Cl2](q) paramagnetic