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# Notes | EduRev

## NEET : Notes | EduRev

The document Notes | EduRev is a part of the NEET Course Physics 28 Years Past year papers for NEET/AIPMT Class 11.
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Q 1. In an experiment, the percentage of error occurred in the measurement of physical quantities A, B, C and D are 1%, 2%, 3% and 4% respectively. Then the maximum percentage of error in the measurement X, where will be     
(A) (B) 16 %
(C) -10 %
(D) 10 %
Ans:
B
Given    = 2% + 1%+ 1%+ 12%= 16%

Q 2. A student measured the diameter of a small steel ball using a screw gauge of least count 0.001 cm. The main scale reading is 5 mm and zero of circular scale division coincides with 25 divisions above the reference level. If screw gauge has a zero error of – 0.004 cm, the correct diameter of the ball is :-    
A: 0.521 cm
B: 0.525 cm
C: 0.053 cm
D: 0.529 cm

Ans: D
Solution:
= MSR + VSR × LC + zero error
= 0.5 cm + 25 × 0.001 cm + 0.004 cm
= 0.529 cm

Q 3. A physical quantity of the dimensions of length that can be formed out of is velocity of light, G is universal constant of gravitation and e is charge] :-    

A: B: C: D: Ans: D
Solution: Q 4. If energy (E), velocity (V) and time (T) are chosen as the fundamental quantities, the dimensional formula of surface tension will be:    
A: [E-2 V-1 T-3]
B: [E V-2 T-1]
C: [E V-1 T-2]
D: [E V-2 T-2]
Ans:
D
Solution: Q 5. If force (F), velocity (V) and time(T) are taken as fundamental units, then the dimensions of mass are:    
A: [F V−1 T−1]
B: [F V−1 T]
C: [F V T−1]
D: [F V T−2]
Ans:
B
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