Question 1:
According to the law of reflection, the angle of incidence is equal to the angle of:
Explanation: The correct answer is A) Reflection. According to the law of reflection, the angle of incidence is equal to the angle of reflection. This means that the incoming light ray and the reflected light ray make the same angle with the normal to the surface of reflection.
Question 2:
When light travels from a medium with a lower refractive index to a medium with a higher refractive index, it bends:
Explanation: The correct answer is B) Towards the normal. When light travels from a medium with a lower refractive index to a medium with a higher refractive index, it bends towards the normal. This bending of light is known as refraction and is governed by Snell's law.
Question 3:
The angle of refraction depends on:
Explanation: The correct answer is D) All of the above. The angle of refraction depends on the angle of incidence, the speed of light, and the refractive index of the medium. These factors influence how much the light ray bends when it passes from one medium to another.
Question 4:
When light passes from a less dense medium to a more dense medium, its speed:
Explanation: The correct answer is B) Decreases. When light passes from a less dense medium to a more dense medium, its speed decreases. This change in speed is one of the factors that contribute to the bending of light during refraction.
Question 5:
The speed of light is maximum in:
Explanation: The correct answer is C) Vacuum. The speed of light is fastest in a vacuum, where it travels at approximately 299,792,458 meters per second. In other media, such as air, water, and glass, the speed of light is slower due to interactions with the atoms or molecules of the medium.