Lenses & Mirrors General Knowledge Objective Type Questions & Answers

Questions

21 What kind of image is formed by a concave lens irrespective of the position of the object?

A virtual, upright and diminised

B real, upright and diminished

C virtual, upright and magnified

D real, inverted and magnified

View Answer

Answer: virtual, upright and diminised

22 Different objects at different distances are seen by the eye. The parameter that remains constant is

A the focal length of the eye lens

B the object distance from the eye lens

C the radii of culvature of the eye lens

D the image distance from the eye lens

View Answer

Answer: the image distance from the eye lens

Article and Schedule Quiz	Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

23 Which of the following is incorrect?

A A concave mirror can give a magnified virtual image.

B A concave mirror can give a magnified real image.

C The virtual image given by a concave mirror is inverted.

D The real image given by a concave mirror is inverted.

View Answer

Answer: The virtual image given by a concave mirror is inverted.

24 An object is placed at a distance of 12 cm from a convex lens on its principal axis and a virtual image of certain size is formed. If the object is moved further 8 cm away from the lens, a real image of the same size as that of the virtual image is formed . Which one of the following is the focal length of the lens?

A 15 cm

B 16 cm

C 18 cm

D 20 cm

View Answer

Answer: 16 cm

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test	Start Test!
SSC MTS Mock Test	Start Test
IBPS CLERK MOCK TEST	Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH)	Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi)	Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH)	Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH)	Start Test!
IB Security Assistant Mock test 1 (english)	Start Test!
UP POLICE CONSTABLE MOCK TEST 1	Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI)	Start Test!