Refraction and Reflection of Light Quiz

What happens to the speed of a wave when it enters a more optically dense medium?

• It increases
• It decreases
• It remains the same
• It becomes zero

When a wave enters a less optically dense medium, how does its direction change?

• It bends towards the normal
• It bends away from the normal
• It continues in a straight line
• It reverses direction

Which property of a wave remains constant when it passes from one medium to another?

• Speed
• Wavelength
• Frequency
• Amplitude

What happens to the wavelength of light when it enters a more optically dense medium?

• It increases
• It decreases
• It remains the same
• It becomes zero

Which of the following is NOT a characteristic of an image formed by a plane mirror?

• Upright
• Same distance from the mirror as the object
• Larger than the object
• Virtual

What type of image is formed by a plane mirror?

• Real
• Virtual
• Inverted
• Magnified

When light passes through a glass slab at an angle to its normal, what phenomenon occurs?

• Reflection
• Refraction
• Diffraction
• Polarization

How does the angle of incidence compare to the angle of refraction when light enters a more optically dense medium?

• It is greater
• It is smaller
• They are equal
• There is no relationship

What is the refractive index (n) of a medium?

• Ratio of speed of light in medium to speed in vacuum
• Ratio of speed of light in vacuum to speed in medium
• Product of speed of light in vacuum and speed in medium
• Difference between speed of light in vacuum and speed in medium

Which law relates the angle of incidence and the angle of refraction to the refractive index?

• Newton's law
• Hooke's law
• Snell's law
• Ohm's law