Chapter 10

Chapter 10

46 Maths Exercise Solutions

What speed should a galaxy move with respect to us so that the sodium line at  is observed at ?

Question No.1
What speed should a galaxy move with respect to us so that the sodium line at  is observed at ?

When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency. Explain why?

Question No.2
When monochromatic light is incident on a surface separating two media, the reflected and refracted light both have the same frequency as the incident frequency. Explain why?

When light travels from a rarer to a denser medium, the speed decreases. Does the reduction in speed imply a reduction in the energy carried by the light wave?

Question No.3
When light travels from a rarer to a denser medium, the speed decreases. Does the reduction in speed imply a reduction in the energy carried by the light wave?

In the wave picture of light, intensity of light is determined by the square of the amplitude of the wave. What determines the intensity of light in the photon picture of light.

Question No.4
In the wave picture of light, intensity of light is determined by the square of the amplitude of the wave. What determines the intensity of light in the photon picture of light.

Two slits are made apart and the screen is placed  away. What is the fringe separation when blue-green light of wavelength  is used?

Question No.5
Two slits are made apart and the screen is placed  away. What is the fringe separation when blue-green light of wavelength  is used?

What is the effect on the interference fringes in a Young’s double-slit experiment if the screen is moved away from the plane of the slits?

Question No.6
What is the effect on the interference fringes in a Young’s double-slit experiment if the screen is moved away from the plane of the slits?

What is the effect on the interference fringes in a Young’s double-slit experiment if the (monochromatic) source is replaced by another (monochromatic) source of shorter wavelength?

Question No.7
What is the effect on the interference fringes in a Young’s double-slit experiment if the (monochromatic) source is replaced by another (monochromatic) source of shorter wavelength?

What is the effect on the interference fringes in a Young’s double-slit experiment if the separation between the two slits is increased?

Question No.8
What is the effect on the interference fringes in a Young’s double-slit experiment if the separation between the two slits is increased?

What is the effect on the interference fringes in a Young’s double-slit experiment if the source slit is moved closer to the double-slit plane?

Question No.9
What is the effect on the interference fringes in a Young’s double-slit experiment if the source slit is moved closer to the double-slit plane?

What is the effect on the interference fringes in a Young’s double-slit experiment if the width of the source slit is increased?

Question No.10
What is the effect on the interference fringes in a Young’s double-slit experiment if the width of the source slit is increased?