MEDIUM
10th CBSE
IMPORTANT
Earn 100

What is the focal length of a concave mirror in the experiment set up shown below?

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Important Questions on Light - Reflection and Refraction

MEDIUM
10th CBSE
IMPORTANT

Parallel rays, from the top of a distant tree, incident on a concave mirror, form an image on the screen. Which diagram correctly shows the image of the tree on the screen?

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MEDIUM
10th CBSE
IMPORTANT
A student has to do the experiment on finding the focal length of a given concave mirror, by using a distant object. What set of apparatus should be used by him?
MEDIUM
10th CBSE
IMPORTANT
A student obtained a blurred image of an object on a screen by using a concave mirror. What should be done by him to obtain a sharp image on the screen?
MEDIUM
10th CBSE
IMPORTANT
What arrangement should be done by a student to find the focal length of a concave mirror by obtaining an image of a distant object?
MEDIUM
10th CBSE
IMPORTANT

A student determines the focal length of a device X, by focussing the image of a far off object on the screen positioned as shown in the figure below.

What is the device X?

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MEDIUM
10th CBSE
IMPORTANT

A student determines the focal length of a device X, by focussing the image of a far off object on the screen positioned as shown in the figure below.

What is the focal length of the device X?

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MEDIUM
10th CBSE
IMPORTANT
Draw a diagram to find the focal length of a concave mirror by using distant object also write down the formula used.
MEDIUM
10th CBSE
IMPORTANT
Rays from Sun converge at a point 10 cm in front of a concave mirror. Where should an object be placed so that size of its image is equal to the size of the object?