SATHEE: Optics Question 939

Optics Question 939

Question: Image formed by a concave mirror of focal length 6 cm, is 3 times of the object, then the distance of object from mirror is

[RPMT 2000]

Options:

A) - 4 cm

B) 8 cm

C) 6 cm

D) 12 cm

Show Answer

Answer:

Correct Answer: A

Solution:

m = ± 3 and f = ? 6 cm Now $m = \frac{f}{f - u} \Rightarrow \pm 3 = \frac{- 6}{- 6 - u}$

For real image $- 3 = \frac{- 6}{- 6 - u}$

Therefore $u = - 8 c m$

For virtual image $3 = \frac{- 6}{- 6 - u}$

Therefore $u = - 4 c m$

Play Store

App Store

Ask SATHEE

Welcome to SATHEE !
Select from 'Menu' to explore our services, or ask SATHEE to get started. Let's embark on this journey of growth together! 🌐📚🚀🎓

I'm relatively new and can sometimes make mistakes.
If you notice any error, such as an incorrect solution, please use the thumbs down icon to aid my learning.
To begin your journey now, click on "I understand".

Optics Question 939

Question: Image formed by a concave mirror of focal length 6 cm, is 3 times of the object, then the distance of object from mirror 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

Menu