Units and Measurements Test

Result

Units and Measurements Test - 38

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Weekly Quiz Competition

Question 1
4 / -1

An experiment measures quantities a,b, and c, and X is calculated from X=ab²/c³ . If the percentage error in a,b,c are ±1%, ±3% and ± 2% respectively, the percentage error in X will be

A
± 13 %

B
± 7 %

C
± 4 %

D
± 1 %

Solution
Question 2
4 / -1

What is the % error in measurement of ‘T’ of a pendulum if maximum errors in measurements of length and ‘g’ are 2% and 4% respectively?

A
6%

B
3%

C
4%

D
5%

Solution
Question 3
4 / -1

The dimensions of the Gravitational constant G are

A

B

C

D

Solution
Question 4
4 / -1

The dimension of capacitance Is (where Q is the dimension of charge)

A

B

C

D

Solution
Question 5
4 / -1

Physics is one of the basic disciplines in the category of ............... sciences.

A
Astro

B
Natural

C
Space

D
Genetic
Question 6
4 / -1

The range of time scale is about ...............

A
10^–10 sec to 10²⁶ sec

B
10^–15 sec to 10¹⁵ sec

C
10^–22 sec to 10¹⁸ sec

D
10²⁰ sec to 10²⁵ sec
Question 7
4 / -1

How much times is the strong nuclear force stronger then weak nuclear force ?

A
10¹³

B
10²

C
10^–13

D
10^–2

Solution
Question 8
4 / -1

How much times is the strong nuclear force stronger then electromagnetic force ?

A
10¹³

B
10²

C
10^–13

D
10^–2

Solution
Question 9
4 / -1

How much times is the electromagnatic force stronger then Gravitational force

A
10¹³

B
10^–13

C
10³⁶

D
10^–36

Solution
Question 10
4 / -1

If the resulting external force acting on system is zero then ............... of the system is constant and if the resultant external torque acting on a system is zero then ............... of the system is constant.

A
total energy, angularmomentum

B
liner momentam, energy

C
liner momentam, angularmomentum

D
angular and linear momentam