Advertisements
Advertisements
प्रश्न
Light travelling from a denser medium to a rarer medium along a normal to the boundary:
(a) is refracted towards the normal
(b) is refracted away from the normal
(c) goes along the boundary
(d) is not refracted
उत्तर
is not refracted
When a ray of light travels along the normal incident on the surface, it is not refracted.
APPEARS IN
संबंधित प्रश्न
The image of an object formed by a plane mirror is:
(a) virtual
(b) real
(c) diminished
(d) upside-down
A man stands 10 m in front of a large plane mirror. How far must the walk before he is 5 m away from his image?
A ray of light travelling in glass emerges into air. State whether it will bend towards the normal or away from the normal.
A ray of light when passes from glass to air, bends towards the normal.
Draw a diagram showing the refraction of a light ray from water to glass. Label on it the incident ray, the angle of incidence (/), and the angle of refraction (r)
The diagram (figure) given below shows two parallel rays 1 and 2 incident on (a) a concave mirror, (b) a convex mirror. Draw the reflected rays and mark the focus by the symbol F.
A ray of light passes from medium 1 to medium 2. Which of the following quantities of the refracted ray will differ from that of the incident ray: Speed, intensity, frequency, wavelength?
Lights of different colours are used as signal for safety transport. From these, the wavelength of red light is _______ nm.
State whether true or false. If false, correct the statement.
The angle of deviation depends on the refractive index of the glass.
Match the following:
Column I | Column II | ||
1. | r > 90 | a. | Light gazes at the surface of separation between the two modes. |
2. | r = 90 | b. | No refraction. |
3. | r < 90 | c. | Refracted ray away from the normal |