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Two lenses of power 15 D and -3 D are placed in contact. The focal length of the combinations is
Options
(a) 10 cm
(b) 15 cm
(c) 12 cm
(d) 8.33 cm
Correct Answer:
8.33 cm
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the velocity of an electron increases, then its de Broglie wavelength will
- The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
- 1 Wb/m² equal to
- A bar magnet of moment M and pole strength m is cut into parts of equal lengths.
- A transformer rated at 10 kW is used to connect a 5 kV transmission line to a 240 V
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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