Following are examples of convex mirrors except ?

A. Rear-view mirror of vehicles

D. Driveway mirror at blind corners

Everyday Science · Physics in Everyday Life · page 39 of 44

Light & Optics MCQs with Answers

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Light & Optics (incl. Lenses) MCQs (381–390)

10 MCQs with answers and a short one-liner. Hide answers to test yourself.

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381.
The band of seven colours is called _?
Correct Answer: A. Spectrum
One-liner
The band of seven colours is called a spectrum.
382.
Past Paper MCQ
A rainbow is formed when light passes through:
Correct Answer: D. A water droplet
One-liner
A rainbow is formed when sunlight passes through water droplets in the atmosphere, undergoing refraction, dispersion, and reflection.
383.
The phenomenon of dispersion of light can be observed experimentally by passing a white light through ?
Correct Answer: A. Prism
One-liner
The phenomenon of dispersion of light can be observed experimentally by passing white light through a prism, which splits it into its constituent seven colors (VIBGYOR).
384.
The diameter of lens is called _?
Correct Answer: C. Aperture
One-liner
The diameter of a lens is called its aperture.
385.
The set of colours obtained in seven different colours components way is called?
Correct Answer: D. Spectrum of Light
One-liner
The set of seven colours obtained when white light splits into its components is called the Spectrum of Light.
386.
If the focal length (f) of a mirror is positive, the mirror is?
Correct Answer: D. Convex
One-liner
If the focal length (f) of a mirror is positive, the mirror is convex.
387.
Following are examples of convex mirrors except ?
Correct Answer: B. Dentist mirror
One-liner
A dentist mirror is a concave mirror, not a convex mirror.
388.
What is the color of the sun at noon as observed from the Earth?
Correct Answer: D. White
One-liner
The sun appears white at noon because, when overhead, its light travels through the least atmosphere and all colors reach our eyes with minimal scattering.
389.
It consists of waves of various radiations _?
Correct Answer: B. Polychromatic
One-liner
Light or radiation consisting of waves of various wavelengths/frequencies is called polychromatic.
390.
Total internal reflection of light is possible when light enters from ?
Correct Answer: D. Water to air
One-liner
Total internal reflection occurs when light travels from a denser medium to a rarer medium (e.g., water to air) at an angle greater than the critical angle.

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Light & Optics MCQs with Answers

Light & Optics (incl. Lenses) MCQs (381–390)

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