Physical World and Measurement MCQ (NEET, JEE Main)

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1. Question

4 points

Match List-I (Fundamental Experiment) with List-II (its conclusion) and select the correct option from the choices given below the list: [JEE MAIN 2015]

	List – I		List – II
(A)	Franck-Hertz experiment	(i)	Particle nature of light
(B)	Photo-electric experiment	(ii)	Discrete energy levels of atom
(C)	Davison-Germer experiment	(iii)	Wave nature of electron
		(iv)	Structure of atom

(A) (A) - (i) (B) - (iv) (C) - (iii)
(B) (A) - (ii) (B) - (iv) (C) - (iii)
(C) (A) - (ii) (B) - (i) (C) - (iii)
(D) (A) - (iv) (B) - (iii) (C) - (ii)

Question 2 of 5

2. Question
4 points
If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be [AIPMT 2015]
- (A) [E V^–2 T^–1]
- (B) [E V^–1 T^–2]
- (C) [E V^–2 T^–2]
- (D) [E^–2 V^–1 T^–3]
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Question 3 of 5

3. Question
4 points
Let [ε₀] denote the dimensional formula of the permittivity of vacuum. If M = mass, L = length, T = time and A = electric current, then: [JEE MAIN 2013]
- (A) [ε₀] = [M^–1L^–³T⁴A²]
- (B) [ε₀] = [M^–¹L²T^–¹A^–²]
- (C) [ε₀] = [M^–¹L2T^–¹A]
- (D) [ε₀] = [M^–¹L^–³T²A]
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Question 4 of 5

4. Question
4 points
A Vernier calipers has 1 mm marks on the main scale. It has 20 equal divisions on the Vernier scale which match with 16 main scale divisions. For this Vernier calipers, the least count is [IIT JEE 2010]
- (A) 0.02 mm
- (B) 0.05 mm
- (C) 0.1 mm
- (D) 0.2 mm
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Question 5 of 5

5. Question
4 points
The dimension of magnetic field in M, L, T and C (Coulomb) is given as [AIEEE 2008]
- (A) MLT^–1C^–1
- (B) MT²C^–2
- (C) MT^–1C^–1
- (D) MT^–2C^–1
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Physical World and Measurement MCQ (NEET, JEE Main) – Test 3

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