MEDIUM
10th CBSE
IMPORTANT
Earn 100

If a converging lens produces an inverted image that is three times the size of an object placed at a distance of 15 cm from it, find the focal length of the lens.

Important Questions on Light - Reflection and Refraction

HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 26
A 2.0 cm high object is placed at a distance of 8 cm in front of a convex lens of focal length 16 cm. Find the position, nature and size of image formed.
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 27
When an object is placed at a distance of 8 cm in front of a convex lens of focal length 16 cm. Find the position, nature and size of image formed.
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 28
What is the nature of image formed by a convex lens if the magnification of the image is -0.8?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 28
What is the nature of image formed by a convex lens if the magnification image of the image is + 2.5?
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 29
A lens of focal length 30 cm is used to produce an eight times magnified image of a film slide on a screen. What is the nature of the lens? At what distance should the slide be placed from the lens?
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 30
A 0.4 cm high object when placed in front of a lens gives an erect image 1.6 cm high at a distance of 12 cm from the lens. State the nature of lens and its focal length.
HARD
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 31
At what distance should an object be placed in front of a converging lens of focal length 12 cm to get an erect image of linear magnification 5?
MEDIUM
10th CBSE
IMPORTANT
Eduwiser's CBSE PHYSICS FOR CLASS X>Chapter 4 - Light - Reflection and Refraction>EXERCISE>Q 32
A 2.0 mm high object is placed at a distance of 10 cm from a diverging lens of power -5 D. Calculate the focal length of the lens and the size of image formed.