EASY
10th CBSE
IMPORTANT
Earn 100

Draw ray diagrams to describe the nature, position and relative size of the image formed by a concave lens for the object when the object is placed at infinity.

Important Questions on Light - Reflection and Refraction

EASY
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 17
Draw ray diagrams to describe the nature, position and relative size of the image formed by a concave lens for the object when the object is placed between infinity and optical centre of the lens.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 18
The image of an object formed by a concave lens appears closer and smaller than the object. Explain with the help of a diagram.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 19
Describe how a pen would look if you saw it through (a) convex lens, (b) a concave lens; the pen is kept close to the lenses. State the nature of image in each case.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 20
Distinguish between convex and concave lenses.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 21
Draw a ray diagram to illustrate the use of a convex lens as a magnifying glass. Why do we usually prefer a convex lens of short focal length than the one with long focal length?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 22
An object is placed at a distance of 36 cm from a convex lens of focal length 24 cm. Find the position and nature of the image formed.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 23
Where should an object be placed in front of a convex lens of focal length 12 cm to get an image 18 cm away from the lens on the other side?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 24
An object placed in front of a convex lens of focal length 8 cm gives a virtual image 40 cm away from the lens. Calculate the magnification of the image.