class 10 light reflection and refraction IMP Questions and Answer

Here we have provided the Top Class 10 Light Reflection and Refraction IMP Questions with their Answers. You can download it in PDF to0.

class 10 light reflection and refraction IMP Questions and Answer PDF Download

List four properties of the image formed by a plane mirror.

Properties of image formed by a plane mirror:

• It is always virtual and erect.
• Its size is equal to that of the object.
• It is formed at the same distance behind the mirror as the object is in front of the mirror. It is laterally inverted.

List four properties of the image formed by a convex mirror.

Properties of image formed by a convex mirror:

• It is always formed behind the mirror, between the pole and its focus.
• It is always virtual and erect. Its size is always smaller than the object.
• Magnification is always positive.

List four properties of the image formed by a concave mirror, when object is placed between focus and pole of the mirror.

• The image is formed behind the mirror.
• It is enlarged, and magnified.
• It is virtual.
• It is erect

Name the type of mirror used in the following situations.
(a) Headlights of a car
(b) Side/rear-view mirror of a vehicle
(c) Solar furnace Support your answer with reason.

a) Headlights of a car –
Concave mirror When the light is placed on the focus of the mirror, it produces a strong beam of light which helps us to see the vehicles and the road ahead clearly

b) Side/rear-view mirror of a car –
Convex mirror As we need the image erected, upright straight, and diminished, so that there is a wider view of the road behind; we use a convex mirror

c) Solar furnace –
Concave mirror Rays come from infinity and form an object at the focus of the mirror. Then the parallel rays produce heat and the solar furnace gets heated up.

A ray of light, incident obliquely on a face of a rectangular glass slab placed in air, emerges from the opposite face parallel to the incident ray. State two factors on which the lateral displacement of the emergent ray depends.

• Lateral displacement depends on the:
• angle of incidence, thickness of slab, and refractive index of the material.