Physics, asked by sraosesetti, 9 months ago

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please answer the question I need with full explanation pls​

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Answered by gayathiri22121998
1

Answer

Note: Focal length formula=1/f=[1/v]-[1/u]

Answer:

a].

a).f=30cm

b).f=60cm

c).f=infinite

d).f=-60cm

e).f=-21.42cm

b]

Option C is incorrect.

Because the image is formed only within this u and v points.That is the parallel rays entering into focal distance only forms image.At focal point ,the image is a point.

C].For this,plane mirror may also produces same size of image and object.

In some special case,concave mirror forms this phenomenon.

c]

Explanation:

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