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प्रश्न
The depth of a pond when seen from above appears to be less.
पर्याय
True
False
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उत्तर
True.
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संबंधित प्रश्न
| Column I | Column II | Column III | |
| 1 | Dispersion | Long-sightedness | Twinkling of stars |
| 2 | Refraction | Splitting of white light into component colours | Convex lens |
| 3 | Hypermetropia | Change in the direction of the ray of light due to change in medium | Spectrum of seven colours |
What is lateral inversion? Explain by giving a suitable example.
What are the important differences between looking at a photograph of your face and looking at yourself in a plane mirror?
A ray of light goes from water into air. Will it bend towards the normal or away from the normal?
How does the light have to enter the glass:
for no refraction to happen?
Light travels at a lower speed in water than in air.
Draw suitable diagrams to illustrate how a beam of light incident parallel to the principal axis is reflected by:
(a) a concave mirror, and (b) a convex mirror
Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.
Which object use the reflection of light?
A ray of light traveling in medium 1 strikes and travels into another transparent medium 2. If the speed of light is greater in medium 1, the ray will ______.
