EASY
UPSC CAPF AC Paper - I
IMPORTANT
Earn 100

The light wave is _____.

50% studentsanswered this correctly

Important Questions on Physics

EASY
UPSC CAPF AC Paper - I
IMPORTANT

The technique used to transmit audio signal in telivison broadcast is?

HARD
UPSC CAPF AC Paper - I
IMPORTANT
When a stone is dropped on the surface of still water, the waves produced are
HARD
UPSC CAPF AC Paper - I
IMPORTANT
Velocity of sound in air
1. decreases with temperature
2. increases with temperature
3. increases with pressure
4. is independent of pressure
Which of the above are true?
EASY
UPSC CAPF AC Paper - I
IMPORTANT

Which one of the following does TV remote control unit use to operate a TV set? 

MEDIUM
UPSC CAPF AC Paper - I
IMPORTANT
A noise level of 100 decibels would correspond to _____.  
EASY
UPSC CAPF AC Paper - I
IMPORTANT
When light waves pass from air to glass, the variables affected are_______.
HARD
UPSC CAPF AC Paper - I
IMPORTANT
Sound waves do not exhibit the phenomenon of
HARD
UPSC CAPF AC Paper - I
IMPORTANT
Stationary waves are so called because in them