0ne degree is equal to:
- Π/270 radians
- Π/360 radians
- Π/90 radians
- Π/180 radians
The circular line has a fix distance from _____ .
- A fix point
- A point from outside
- Any point
- A point on a circle
In the displacement-time graph, if the slope is constant then the velocity is
- May be variable or constant
- Infinite
- Variable
- Constant
One radian is analogous to:
- 57°18″
- 57°3
- 57°3″
- 57°18′
A man is in a car that is moving with the velocity of 36km/hr. His speed with respect to the car is:
- 10 m/s
- Infinite
- Zero
- 36 m/s
The relation between gray and rad is given as: 1 Gy = rad
- 0.01
- 100
- 10
- 0.001
The decay rate of radioactive substance is:
- Constant with time
- Decreases exponentially with time
- Varies inversely with time
- Decreases linearly with time
The SI unit of equivalent dose is:
- Mass
- Sievert
- Gray
- Rad
In Compton effect, a photon of a certain wavelength collides with a stationary electron. The wavelength of the emitted photon is:
- Same
- Longer
- Infinite
- Shorter
The process of ejection of loosely bound electrons from a certain photo sensitive surface by absorption of photon is called:
- Compton effect
- Pair production
- Photoelectric effect
- Black body radiation
