Question Detail

radian per second is unit of

Momentum
Moment of Inertia
Frequency
Angle Velocity

Answer: Option D

Explanation:

unit of Momentum is kilogram meter per second,

unit of Moment of Inertia is kilogram square meter,

unit of frequency is Hertz.

1. The incident ray, reflected ray and normal to the reflecting surface at the incident point all never lie in same plane.

True
False

Answer: Option B

2. unit of Pressure is

newton second
pascal
watt
newton per meter

Answer: Option B

Explanation:

newton second is unit of impulse,

watt is unit of Power,

newton per meter is unit of Surface Tension.

3. The rotational effect of a force on a body about an axis of rotation is described in terms of

Centre of gravity
Centripetal force
Centrifugal force
Moment of force

Answer: Option D

4. Which law is also called law of inertia ?

Newton first law
Newton second law
Newton third law
All of above

Answer: Option A

5. Name of the instrument to measure atomspheric pressure ?

Barometer
Barograph
Bolometer
Callipers

Answer: Option A

Explanation:

Barograph - Recordings of atmospheric pressure,
Bolometer - Used to measure heat radiation,
Callipers - Used to measure inner and outer diameters of bodies.