Physics
A glass slab is placed over a piece of paper on which VGYR is printed with letter V in violet, G in green, Y in yellow and R in red colour. The letter of colour …………… appears to be the most raised.
- red
- green
- yellow
- violet
Refraction Plane Surfaces
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Answer
violet
Reason — The shift increases with the decrease in the wavelength of light used. Since, wavelength of violet light is least, hence, the shift is maximum and it appears to be the most raised.
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Related Questions
The shift by which an object appears to be raised depends on:
- the refractive index of the medium
- the thickness of denser medium
- the wavelength of incident light
- all of the above
An object when placed in a rarer medium and is viewed from a denser medium appears to be at a …………… distance than its real distance.
- smaller
- greater
- same
- cannot say
Assertion (A): The stars twinkle while the planets do not.
Reason (R): Stars are more distant than the planets.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.
Assertion (A): An empty test tube placed in water in a beaker with its mouth outside the water surface appears silvery when viewed from a suitable direction.
Reason (R): The substance in water appears silvery due to refraction of light.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.