SATHEE: Optics Question 912

Optics Question 912

Question: A boy stands straight infront of a mirror at a distance of $30 c m$ away from it. He sees his erect image whose height is $\frac{1}{5} t h$ of his real height. The mirror he is using is

[MP PMT 1993]

Options:

A) Plane mirror

B) Convex mirror

C) Concave mirror

D) Plano-convex mirror

Show Answer

Answer:

Correct Answer: B

Solution:

Size is $\frac{1}{5} .$ It can’t be plane and concave mirror, because both conditions are not satisfied in plane or concave mirror. Convex mirror can meet all the requirements.

Optics Question 912

Question: A boy stands straight infront of a mirror at a distance of $30 c m$ away from it. He sees his erect image whose height is $\frac{1}{5} t h$ of his real height. The mirror he is using is

Options:

Answer:

Solution:

Engineering Preparation

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NCERT Books & Solutions

Important Resources

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Syllabus

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Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Optics Question 912

Question: A boy stands straight infront of a mirror at a distance of 30cm away from it. He sees his erect image whose height is 15th of his real height. The mirror he is using is

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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Question: A boy stands straight infront of a mirror at a distance of $30 c m$ away from it. He sees his erect image whose height is $\frac{1}{5} t h$ of his real height. The mirror he is using is