I am providing you the CET Question Papers. This question paper are as follows:

1. Rotational kinetic energy of a body is given by the equation
2 where I is moment of inertia and ω angular velocity of the body. Thedimensional formula of I using the above equation is
1).ML2T0 2). ML2T1 3). M2L1T1 4). MLT

2. If L, C and R represent inductance, capacitance and resistance respectively, then which of the following does not have the dimension of the frequency?
1). 2). √ 3). 4).

3. A truck of mass 0.5 Ton is moving with a speed of 6 ms‐1. Sand is poured at the rate of 10 Kg per minute. How much force is needed to keep it moving with the same speed?
1) 1N 2) 50N 3) 500 N 4) 3 N

4. A horizontal force F is applied on a block of weight W to hold against a vertical wall. The minimum value of force needed to hold the block if the coefficient of friction of the surface is
1) 2) 3) 4) W

5. A bird is inside a wire cage hung from a spring balance. The spring balance reading is R1 when the bird is flying and R2 when it is at rest inside the cage.
Which of the following is correct?
1) R1>>>R2 2) R1>R2 3) R1<R2 4)R1=R2

6. An ideal heat engine gives out heat at 770C to have a 30% of efficiency. The temperature of the source is
1) 2690c 2)7730c 3) 6730c 4) 2270c
7. In an auditorium absorption co‐efficient of an open window is
1) zero 2) infinity 3) unity 4) 0.5

8. An optical medium has refractive index 2.0. The value of speed of light in
that medium is approximately equal to
1) 6X108 ms‐1 2) 1.5X108 ms‐1 3) 1.5X10‐8 ms‐1 4) 3X108 ms‐1

9. First law of thermodynamics is a special case of
1) law of conservation of energy 2) Boyle’s law
3) law of conservation of mass 4) Charles law

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