EASY
10th CBSE
IMPORTANT
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Which type of mirror has positive focal length?

(Choose from the following: Convex mirror/ Concave mirror)

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Important Questions on Reflection of Light

EASY
10th CBSE
IMPORTANT
Which type of mirror has negative focal length?
EASY
10th CBSE
IMPORTANT
What is the nature of a mirror having a focal length of, +10 cm?
EASY
10th CBSE
IMPORTANT
What kind of mirror can have a focal length of, -20 cm. (Choose from: Concave/ Convex/ Plane)
EASY
10th CBSE
IMPORTANT
All the distances are measured from the _____ of a spherical mirror.
EASY
10th CBSE
IMPORTANT

What sign (+ve or -ve) has been given to the following on the basis of Cartesian Sign Convention?

Height of a real image.

EASY
10th CBSE
IMPORTANT
What sign (positive or negative) has been given to the following on the basis of Cartesian Sign Convention?
Height of a virtual image.
EASY
10th CBSE
IMPORTANT
Describe the New Cartesian Sign Convention used in optics. Draw a labelled diagram to illustrate this sign convention.
EASY
10th CBSE
IMPORTANT
Giving reasons, state the 'signs' (positive or negative) which can be given to object distance (u) for a concave mirror or convex mirror.