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.

200451.

Which one of these is not vector quantity?

A. Impulse
B. Momentun
C. Force
D. None of these
Answer» E.
200452.

What is the formula for Impulse?

A. Impulse=change in Momentum
B. Impluse=Force exerted
C. Impulse=mass X velocity
D. none
Answer» E.
200453.

A truck starts at rest and moves in a straight road with constant accleration 5m/s2 .What is the velocity and displacement after 5 sec?

A. 30m/s,63m
B. 25m/s,62.5 m
C. 20m/s,62.5 m
D. 35m/s,62.5 m
Answer» C. 20m/s,62.5 m
200454.

if the displacement-time graph is a straight line. Which of these is false?

A. velocity is constant
B. acceleration is zero
C. speed is constant
D. accleration is not zero
Answer» E.
200455.

Action and reaction are equal and opposite and they act on?

A. Same body
B. different bodies
C. another
D. None of these
Answer» C. another
200456.

A Honda city car is traveling at 54 km/h. If brakes are applied so as to produce uniform retardation of 3m/s2. Calculate the time taken by it to stop?

A. stop?
B. 5sec
C. 10sec
D. None of these
Answer» B. 5sec
200457.

The area under velocity -time graph is ?

A. accleration
B. distance
C. displacement
D. None of these
Answer» D. None of these
200458.

John is driving the car in one direction at the speed of 36km/hr. He look on the side for 3 sec.How far John travel during this in attentive period?

A. 10m
B. 30m
C. 25m
D. 20m
Answer» D. 20m
200459.

which one of these is not a equation of motion in uniform acceleration?

A. v=u+at
B. v2=u2+2as
C. s=ut+.1/2(at)2
D. None of these
Answer» E.
200460.

A truck traveling at 30 km/h speeds up to 90 km/h in 6 seconds. What is the accleration of the truck?

A. 3.7m/s2
B. 2.7m/s2
C. 2.5m/s2
D. None of these
Answer» C. 2.5m/s2
200461.

what is the velocity of the ball when it comes back into the hand of person?

A. 10m/s
B. 15m/s
C. 20m/s
D. 0
Answer» C. 20m/s
200462.

What is the time taken to reach the ball into person hand's back?

A. 3.06s
B. 2min
C. 6sec
D. none of these
Answer» B. 2min
200463.

Which one of these is having the least speed?

A. Bicycle moving with 12 km/h
B. A car moving with 1500 m/min
C. A man running with 5m/s
D. A train running with 1km/min
Answer» B. A car moving with 1500 m/min
200464.

A man of 50 kg jumps up to a height of 1.2 m. What is his potential energy at the highest point?

A. 50J
B. 60J
C. 500J
D. 600J
Answer» E.
200465.

which of these is not a vector quantity?

A. Potential energy
B. Momentum
C. Force
D. Velocity
Answer» B. Momentum
200466.

Find the momentum of the body of mass 10 kg having a kinetic energy 20J?

A. 10 kgm/s
B. 20 kgm/s
C. 1.44 kgm/s
D. None of these
Answer» E.
200467.

A pump takes 20 sec to lift 100 kg of water to the water tank situated at the height 10 m. What is the power of the pump? Given g=10m/s-2

A. 2 Kilowatt
B. 1 kilowatt
C. 1.5 kilowatt
D. .5 kilowatt
Answer» E.
200468.

An object is falling freely from the height H.After it has fallen a height 3H/4,it will possess?

A. more potential and less kinetic energy
B. less potential and high kinetic energy
C. same potential and kinetic energy
D. only kinetic energy
Answer» B. less potential and high kinetic energy
200469.

What is the Final KE of the truck

A. 4Mv2
B. Mv2
C. 5Mv2
D. 2Mv2
Answer» E.
200470.

Workdone by the acceleration peddle ?

A. 1.5Mv2
B. Mv2
C. .5Mv2
D. 2Mv2
Answer» B. Mv2
200471.

Two bodies X and Y have same momentum. Mass of X is greater then mass of Y. Which of the two bodies will have higher kinetic energy?

A. x
B. y
C. another
D. Both will have same KE
Answer» C. another
200472.

when an object is placed at infinity from the concave mirror,the image is formed at?

A. infinity
B. radius of curvature
C. focus
D. none of these
Answer» D. none of these
200473.

.Which of the following does not have unit as Joule?

A. Workdone
B. Kinetic energy
C. force
D. Heat
Answer» D. Heat
200474.

A concave mirror produces three times magnified (enlarged) real image of object placed at 10 cm in front of it. Where is the image located?

A. 30 cm
B. 3.3cm
C. 33cm
D. none of these
Answer» B. 3.3cm
200475.

The potential energy of the truck?

A. does not change
B. PE of the truck becomes four times of the initial Potential energy
C. anoyher
D. None of these
Answer» B. PE of the truck becomes four times of the initial Potential energy
200476.

No matter how far you stand from a spherical mirror , your image appears erect. The mirror may be?

A. convex
B. concave
C. plane
D. either plane or concave
Answer» B. concave
200477.

which of these is false for plane mirror?

A. focal lenght is infinite
B. Power of the plane mirror is zero
C. Magnification produced is 1
D. None of these
Answer» E.
200478.

The image formed by a convex mirror for an object placed at infinity is ?

A. Behind the mirror at focus
B. Behind the mirror between focus and pole
C. infront of mirror at focus
D. None of these
Answer» B. Behind the mirror between focus and pole
200479.

A concave mirror is a part of a sphere of radius 60cm.It’s focal length is?

A. 60cm
B. 15cm
C. 30
D. infinity
Answer» D. infinity
200480.

Which mirror is used as rear-view mirror in vehicles?

A. convex
B. concave
C. plane
D. none
Answer» B. concave
200481.

Find the size of the image?

A. 7.1cm
B. 5cm
C. 2.2 cm
D. None of these
Answer» D. None of these
200482.

Find the position of the image ?

A. 8.1cm
B. 8.6 cm
C. Another
D. None of these
Answer» C. Another
200483.

An object of height 5 cm is placed at 30 cm from a concave mirror of focal lenght 15 cm.Which one is true?

A. virtual inverted image will be formed at 10 cm and will be of diminished size then object
B. A real erect image will be formed at 30 cm and will be of same size as object
C. A real inverted image will be formed at 30 cm and will be of same size as object
D. none of this
Answer» D. none of this
200484.

Find the nature of the image

A. Virtual ,inverted
B. real,inverted
C. Virtual ,erect
D. real ,erect
Answer» D. real ,erect
200485.

The power of the lens is 2.5D. What is the nature and focal lenght of the lens?

A. Concave,20 cm
B. Convex,20 cm
C. Concave,40 cm
D. Convex,40 cm
Answer» E.
200486.

The focal length and power of the combination of convex and concave lens of same focal lenght placed in contact with each other?

A. half the focal length,twice the power of single lens
B. zero,infinite
C. infinite,zero
D. twice the focal lenght of single lens and half the power of single lens
Answer» D. twice the focal lenght of single lens and half the power of single lens
200487.

A object of lenght 4cm is placed at a distance 20cm from a convex lens of focal length 10 cm. What is the lenght and nature of the image?

A. 4cm ,inverted real
B. 2cm ,inverted real
C. 4cm ,inverted virtual
D. 2cm,inverted virtual
Answer» B. 2cm ,inverted real
200488.

Identify a mirror having focal length –35cm?

A. Convex
B. concave
C. plane
D. none
Answer» C. plane
200489.

Where should an object be placed, so that a real and inverted image of the same size is obtained by a Convex lens?

A. at the focus of the lens
B. at twice the focal length
C. at infinity
D. between the optical centre of the lens and its focus
Answer» C. at infinity
200490.

The refractive index of glass with respect to water is 1.12. The refractive index of glass with respect to air is 1.5 What will be the refractive index of water with respect to air?

A. 1.2
B. 1.9
C. 1.6
D. 1.33
Answer» E.
200491.

A convex lens has a focal length of 30 cm. Calculate at what distance should the object be placed from the lens so that it forms an image at 60 cm on the other side of the lens?

A. 25cm
B. 60cm
C. 30cm
D. None of these
Answer» C. 30cm
200492.

Concave lens always provide?

A. Inverted and diminished image
B. erect and magnified images
C. Erect and diminished image
D. None of these
Answer» D. None of these
200493.

Two medium X and Y with refractive index 1.31 and 1.50 are given.?Which of the following is false?

A. Y will bend the light more
B. Speed of the light will be more in X
C. Both
D. none
Answer» E.
200494.

What is focal length of this combination?

A. 7.1cm
B. 35cm
C. 5 cm
D. None of these
Answer» B. 35cm
200495.

Which of these is not true for the pair of Linear equation ? x-2=0 y-11=0

A. It has no solution
B. They are perpendicular to each other
C. Line x-2=0 is parallel to y-axis
D. Line y-11 is parallel to x-axis
Answer» B. They are perpendicular to each other
200496.

Which of these is not true for the Line 11x-9y+ 99=0 ?

A. x axis at ( -9,0)
B. y axis at ( 0,11)
C. Point (1,110/9) Lie on the line
D. None of these
Answer» E.
200497.

What is power of the this combination

A. 14
B. 6
C. 1
D. None of these
Answer» B. 6
200498.

The pair of linear equations x -5y=11 and 3x-15y-33=0 has

A. no solutions
B. infinite solutions
C. One solution
D. two solution
Answer» B. infinite solutions
200499.

Anil scored 55 marks in Maths test receiving 3 marks for each correct answer amd losing 1 mark for each wrong answer. Had 4 marks been awarded for each correct answer amd 2 marks deducted for wrong answer,the anil would have got 70 marks. The number of the questions in the Maths test are ?

A. 15
B. 10
C. 25
D. 20
Answer» B. 10
200500.

Which of these is false for refractive index?

A. The lights rays bends more in glass then in water
B. it depends on the nature of the medium
C. It depends on the angle of the incidence
D. None of these
Answer» E.