2. Which of the following is not true about the nature of light?
a. Light has a constant speed of 3 x 109 m/s in any medium.
b. Light is a form of energy that travels in space.
c. Light is a mixture of ROYGBIV colors of light.
d. Light is an electromagnetic wave.
3.
What will be the comparison between red light and violet light, in a vacuum?
a. both have the same frequency
b. both have the same wavelength
c. both travel at the same speed
d. red light travels faster than violet light
4.
On which the intensity of light depends?
a. frequency
c.how much of it is absorbed
b. how much energy it has d.wavelength
5. Which of the following is NOT an electromagnetic wave?
a. infrared
C.sound
b. radio
d.visible light
6. Among all the electromagnetic waves, which has the highest frequency
a. infrared
c.radio wave
b. gamma rays
d.ultraviolet light
7. Light is an electromagnetic wave. Which characteristic is common in all electromagnetic waves
in vacuum?
a. amplitude c.speed
b. frequency dwavelength​