(A) 10-3
(B) 10-6
(C) 10-9
(D) 109
Answer: (C) 10-9
Category: Physics MCQs Class 9
Physics solved multiple choice questions (MCQs) for class 9 with answers.
The least count of screw gauge having pitch 0.5 mm and 50 divisions on its circular scale is ______.
(A) 0.001 cm
(B) 0.01 cm
(C) 0.1 cm
(D) 1.0 cm
Answer: (A) 0.001 cm
Metals are good conductors of heat due to the:
(A) Free electrons
(B) Big size of their molecules
(C) Small size of their molecules
(D) Rapid vibration of their atoms
Answer: (A) Free electrons
Temperature at sun’s surface is:
(A) 6000°C
(B) 5000°C
(C) 4000°C
(D) 3000°C
Answer: (A) 6000°C
What should be the approximate length of a glass tube to construct a water barometer?
(A) 0.5 m
(B) 1 m
(C) 2.5 m
(D) 11 m
Answer: (D) 11 m