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1
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0

A tentative explanation of observations without assuming that it is true is called

A
hypothesis
B
physical laws
C
theory
D
model
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following statement is incorrect?

A
Classical Physics deals with macroscopic phenomena and includes subject like mechanics, electrodynamics, optics and thermodynamics.
B
All Physics and also mathematics is based on assumptions each of which is variously called hypothesis or axiom or postulate etc.
C
A hypothesis is a supposition with assuming that is true.
D
An axiom is a self-evident truth, while a model is a theory proposed to explain observed phenomena.
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

Which of the following technique is not used for measuring small time intervals?

A
Electronic oscillator
B
Decay of elementary particles
C
Atomic clock
D
Spring oscillator
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

The relative errors in the measurement of two lengths 1.02 cm $$\pm$$ 0.01 cm and 9.89 cm $$\pm$$ 0.01 cm is

A
$$\pm$$1% and $$\pm$$0.1%
B
$$\pm$$1% and $$\pm$$0.2%
C
$$\pm$$1% and $$\pm$$1%
D
$$\pm$$0.1% and $$\pm$$1%
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Units & Measurements Vector Algebra Motion Laws of Motion Circular Motion Work, Energy and Power Center of Mass and Collision Rotational Motion Elasticity Fluid Mechanics Heat and Thermodynamics Gravitation Simple Harmonic Motion Waves
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Ray Optics Wave Optics
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