ask mattrab

48 Science -- Light

The apparent depth of water in a pond appears less than the real depth, why?

The apparent depth of water in a pond appears less than the real depth, why?

1 Answers

1907 Views

Due to refraction, the apparent depth of water in a pond appears less than the real depth. Because of the phenomenon of refraction, light rays coming from the bottom of the pond bend when they reach the surface. As a result, it appears to be coming from a different position above the actual depth of the pond.

More questions on Light

what is the speed of light ?

The speed of light is3x108 m/s.

Write any two differences between visible and invisible spectrum.

What is an electromagnetic wave? Arrange various electromagnetic wave in a spectrum according to their increasing wavelength.

Write the laws of refraction of light?

Following are the laws of refraction of light:

  1. The normal ray, incident ray and refracted ray, all lie on the same plane.
  2. The ratio of sine of angle of incidence to the angle of refraction is always constant for a given pair of media, i.e., mu = (sin i / sin r).
  3. When a ray of light passes from denser to rarer medium (DAR), it goes away from normal. When a ray of light passes from rarer to denser medium, it goes towards the normal. A ray of light incident normally passing without refraction.

The glass rod partially immersed in water appears bent. why?

Though X-ray is harmful for human health, it is used in medical field, why?

Define dispersion of light.

What is the refractive index of the mgiven media? Write:a) Waterb) Glassc) Iced) Diamond

What is endoscope? Why is it used?

The refractive index of a glass is 1.5, what does it mean?

The refractive index of a glass is 1.5. This means that the velocity of light is 1.5 times slower in glass as compared to the velocity of light in air/vacuum.

What is the value of critical angle of water and diamond.

What is critical angle?

What is mirage?

What is light pipe?

Define the total internal reflection of light.

What is radiotherapy?

What are the critical angles of glass and water?

Mention one each source of x-ray and infrared ray.

What are infra sound?

What are infrasound and ultrasound?

Close Open App