Units and Measurements Test

Result

Units and Measurements Test - 56

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Weekly Quiz Competition

Question 1
4 / -1

In The formula, X = 3YZ²; X has dimensions of capacitance and Z has dimensions of magnetic induction. The dimensions of Y are :

A

B

C

D

Solution
Question 2
4 / -1

The force acting between two point charges kept at a certain distance is F₁ Now magnitude of charge are double and distance between them is double. The force acting between them is F₂ find out the ratio of F₂/F₁ = ...............

A
16 : 1

B
1 : 16

C
1 : 1

D
1 : 8

Solution
Question 3
4 / -1

1 g = ............... amu

A

B

C

D

Solution
Question 4
4 / -1

The intercepted area of the spherical surface about the center is 0.25 m² having diameter 50 cm what will be solid angle ?

A

B

C

D

Solution
Question 5
4 / -1

One planet is observed from two diametrically opposite point A and B on the earth the angle subtended at the planet by the two directions of observations is 1.8^o. Given the diameter of the earth to be about 1.276 × 10⁷ m. What will be distance of the planet from the earth ?

A

B

C

D

Solution
Question 6
4 / -1

In an experiment to determine the density of a cube the percentage error in the measurement of mass is 0.25 % and the percentage error in the measurement of length is 0.50 % what will be the percentage error in the determination of its density ?

A
2.75 %

B
1.75 %

C
0.75 %

D
1.25 %

Solution
Question 7
4 / -1

A
18 %

B
14 %

C
21 %

D
12 %

Solution
Question 8
4 / -1

In the experiment of simple pendulum error in length of pendulum (l)is 5 % and that of g is 3 % then find percentage error in measurement of periodic time for pendulum

A
4.2 %

B
1.2 %

C
2 %

D
4 %

Solution
Question 9
4 / -1

Heat produced in a current carrying conducting wire is H = I²Rt it percentage error in I, R and t is 2 % , 4 % and 2 % respectively then total percentage error in measurement of heat energy ...............

A
8 %

B
15 %

C
5 %

D
10 %

Solution
Question 10
4 / -1

A
a + b

B
2b + a

C
2a + b

D
a – b

Solution