| ⇦ | 
| ⇨ |
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: - Maximum velocity of the photoelectron emitted by a metal is 1.8×10⁶ ms⁻¹.
- A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver
- A body of mass 4 kg is accelerated upon by a constant force travels
- A stone thrown into still water, creates a circular wave pattern moving radially
- Two bodies of masses m and 4 m are moving with equal K.E. The ratio of their linear
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Maximum velocity of the photoelectron emitted by a metal is 1.8×10⁶ ms⁻¹.
- A silver wire of radius 0.1 cm carries a current of 2A. If the charge density in silver
- A body of mass 4 kg is accelerated upon by a constant force travels
- A stone thrown into still water, creates a circular wave pattern moving radially
- Two bodies of masses m and 4 m are moving with equal K.E. The ratio of their linear
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