The image which can be produced on a screen is called
Virtual image
Real image
Laterally inverted image
Diminished image
The splitting up of light into its constituent colours is known as
Deviation
Dispersion
Reflection
Refraction
The bending up of light when passing from one medium to another is known as
reflection
refraction
dispersion
none of these
The bending of light when it passes from one medium to another is called
Total internal reflection
Diffuse reflection
Linear magnification m is given by
m = height of the image / height of the object
m = height of the object / height of the image
Distance of the image from the lens / distance of the object from the lens.
m = Distance of the object from the lens / height of the image
A diverging lens has
A real principal focus
A virtual principal focus
No principal focus
A principal focus same as a converging lens
The converging lens in our eye will form a
Real inverted image on the retina
Virtual inverted image on the retina
Virtual erect image on the retina
Real erect image on the retina
Light enters from air into a glass plate having refractive index 1.50. What is the speed of light in glass ?(The speed of light in vacuum is 3 x 108 m/s)
2 x 108 m/s
1.82 x108 m/s
4 x108 m/s
When dispersion occurs due to fall of light in a prism we will get a colour pattern or a band of colours known as
white band
spectrum
ultraviolet rays
An ordinary mirror silvered at the back forms several images of one object due to
Multiple reflection inside the glass
