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Free download in PDF CSAT Prelims general awareness multiple choice questions(mcqs) and answers on Physics. These previous years solved questions are helpful to crack paper I exam.
(1)
A hunter aims his gun at a point between the eyebrows of a monkey sitting on a branch of a tree. Just as he fires, the monkey jumps down. The bullet will:
[A]
hit the monkey at the point aimed
[B]
hit the monkey above the point aimed
[C]
hit the monkey below at the point aimed
[D]
miss the monkey altogether
Comment
(2)
An oil tanker partially filled with oil moves forward on a level road with uniform acceleration. The free surface of oil then:
[A]
remains horizontal
[B]
assumes a parabolic curve
[C]
is inclined to the horizontal with smaller depth at the rear end
[D]
is inclined to the horizontal with larger depth at the rear end
Comment
(3)
A spherical body moves with a uniform angular velocity (w) around a circular path of radius r. Which one of the following statements are correct ?
[A]
The body has no acceleration
[B]
The body has a radial acceleration ω2r directed toward centre of path
[C]
The body has a radial acceleration 2/5ω2r directed away from the centre of the path
[D]
The body has an acceleration ω2 tangential to its path
Comment
(4)
Four wires of same material and of dimensions as under are stretched by a load of same magnitude separately. Which one of them will be elongated maximum ?
[A]
Wire of 1m length and 2 mm diameter
[B]
Wire of 2m length and 2mm diameter
[C]
Wire of 3m length and 1.5mm diameter
[D]
Wire of 1m length and 1mm diameter
Comment
(5)
Ball bearings are used in bicycles, cars, etc., because
[A]
the effective area of contact between the wheel and axle is reduced
[B]
the effective area of contact between the wheel and axle is increased
[C]
the actual area contact between the wheel and axle is increased
[D]
none of the above statements is correct
Comment
(6)
Cloudy nights are warmer compared to clear cloudless nights, because clouds:
[A]
reflect back the heat given off by earth
[B]
produce heat and radiate it towards earth
[C]
prevent clod waves from the sky from descending on earth
[D]
absorb heat from the atmosphere and send it towards earth
Comment
(7)
When a CD (compact disc used in audio and video systems) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of the phenomenon of:
[A]
reflection and transmission
[B]
reflection and diffraction
[C]
diffraction and transmission
[D]
refraction, diffraction and transmission
Comment
(8)
Which one of the following statements is not correct ?
[A]
The velocity of sound in air is independent of pressure
[B]
The velocity of sound in air decreases as the humidity increases
[C]
The velocity of sound in air increases with the increase of temperature
[D]
The velocity of sound in air not affected by the change in amplitude and frequency
Comment
(9)
A fuse is used in mains electric supply as a safety device. Which one of the following statements about the fuse is correct ?
[A]
It must have a low melting point
[B]
It is made mainly from silver alloys
[C]
It must have very high resistance
[D]
It is connected in parallel with the main switch
Comment
(10)
Electrically charged particles from space traveling at speeds of several hundred km/sec can severally harm living beings if they reach the surface of the earth. What prevents them from reaching the surface of the Earth ?
[A]
The Earth’s magnetic field diverts them towards its poles
[B]
Ozone layer around the Earth reflects them back to outer space
[C]
Moisture in the upper layers of atmosphere prevents them from reaching the surface of the Earth
[D]
None of the statements (A), (B) and (C) given above is correct
Comment
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