| ⇦ | 
| ⇨ |
If the image formed by a convex mirror of focal length 30 cm is a quarter of the size of the object, then the distance of the object from the mirror will be
Options
(a) 30 cm
(b) 60 cm
(c) 90 cm
(d) 120 cm
Correct Answer:
90 cm
Explanation:
Given, f = + 30 cm and m = 1 / 4 Magnification, m = f / (f – u)
Therefore, 30 / (30 – u) = 1 / 4
30 – u = 120
⇒ u = -90 cm
Related Questions: - The coefficient of mutual inductance of two coils is 6 mH. If the current flowing
- A capacitor of 10 µF charged upto 250 volt is connected in parallel with another
- Which of the following quantities has units but not dimensions
- A pan is suspended from a steel wire. Weights are slowly put on the pan
- Two capacitors 3μF and 4μF, are individually charged across a 6 V battery.
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The coefficient of mutual inductance of two coils is 6 mH. If the current flowing
- A capacitor of 10 µF charged upto 250 volt is connected in parallel with another
- Which of the following quantities has units but not dimensions
- A pan is suspended from a steel wire. Weights are slowly put on the pan
- Two capacitors 3μF and 4μF, are individually charged across a 6 V battery.
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply