Question

1. Among the following what is the ratio of SI and CGS units of coefficient of viscosity

a) 5:1 b) 7:1 c) 10:1 d) 15:1 [ ]

2. Among the following the dimensional formula of impulse is

a) MLT-1

b) MLT-2

c) ML-1

T

-2

d) ML2

T

-2 [ ]

3. The random error which exist invariably in screw gauge is

a) Least count error

b) Zero error

c) Gross error

d) Backlash error [ ]

4. Which of the following statement is true

a) Velocity, acceleration, displacement and force are vector quantities

b) Weight, mass torque, energy, work are scalar quantities

c) Angular velocity, time, momentum, electric field strength are vector

quantities

d) A vector quantity is one in which only magnitude is specified [ ]

5. In projectile motion, if air resistance is ignored, the horizontal motion

has

a) Constant acceleration

b) Constant velocity

c) Variable acceleration

d) Constant retardation [ ]

6. A body is dropped freely from a height ‘h’. It crosses a point P in its path,

which is at a height of from the ground in ‘t1’ seconds and from there

it is reached ground in ‘t2’seconds, then t1:t2 is

a) 1:1 b) 1:3 c) 1:4 d) 3:4

​

Answer 1

1.b)

2.c)

3.a)

4. D)

5.b)

6.a)