The image formed by a concave lens is always MCQ with Answer and Explanation

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The image formed by a concave lens is always

A. Real, erect, magnified

B. Real, inverted, diminished

C. Virtual, erect, diminished

D. Virtual, inverted, magnified

Answer: Option C

Solution (By JKExamLibrary)

Concave lens diverges light, always forms virtual, erect, diminished image on same side as object. Used in spectacles for myopia.

This question belongs to: Science Physics

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Practice More Physics Questions

Question #1 Report Error

A body of volume 100 cc weighs 80 g in air. It will float in water with

A. 100 cc submerged

B. 80 cc submerged

C. It will sink

D. 20 cc above water

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Correct Answer: Option B

Explanation:
Density = 80/100 = 0.8 g/cc. Water density 1 g/cc. Fraction submerged = 0.8, so 80 cc submerged, 20 cc above. So option B correct.

This question belongs to: Science Physics

Question #2 Report Error

The value of universal gravitational constant G is

A. 6.67 × 10⁻¹¹ N m²/kg²

B. 6.67 × 10⁻¹¹ dyne cm²/g²

C. Both A and C

D. 9.8 m/s²

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Correct Answer: Option C

Explanation:
G = 6.67 × 10⁻¹¹ N m²/kg² in SI, and 6.67 × 10⁻⁸ dyne cm²/g² in CGS. Both are correct. Important constant, measured by Cavendish. g is acceleration due to gravity, different.

This question belongs to: Science Physics

Question #3 Report Error

In parallel circuit, which quantity is same across branches?

A. Current

B. Resistance

C. Voltage

D. Power

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Correct Answer: Option C

Explanation:
Parallel branches share same voltage (potential difference). Current divides inversely with resistance. Memory aid: 'Parallel: same voltage; Series: same current'. Fundamental circuit property frequently tested in competitive exams to assess basic electronics understanding.

This question belongs to: Science Physics

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