Physics
A small air bubble in a glass block when seen from above appears to be raised because of:
- refraction of light
- reflection of light
- reflection and refraction of light
- none of the above
Refraction Plane Surfaces
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Answer
refraction of light
Reason — When you look at a small air bubble in a glass block from above, the light rays coming from the air bubble bend as they pass from the denser medium (glass) to the less dense medium (air). This bending of light causes the apparent position of the air bubble to be shifted, making it appear raised or displaced from its actual position. Therefore, the apparent displacement of the air bubble is due to the refraction of light.
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Related Questions
An object when placed in a denser medium and is viewed from a rarer medium appears to be at a lesser depth than real death. This is because of :
- reflection
- refraction
- dispersion
- diffraction
Refractive index of a liquid can be found using :
- μ = real depth x apparent depth
- μ = apparent depth/real depth
- μ = real depth/apparent depth
- none of the above
An object in a denser medium when viewed from a rarer medium appears to be raised. The shift is maximum for:
- red light
- violet light
- yellow light
- green light
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