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Subjects
Science State Board
Class 8
Measurment
Textbook questions

9. Consider the statements given below and choose the correct option

Exercise condition:

3 m.

1.

Assertion (A):	The SI system of units is the suitable system for measurements.
Reason (R):	The SI unit of temperature is kelvin.

A is true but R is false
A is false but R is true
Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A

2.

Assertion (A):	Electric current, amount of substance, luminous intensity are the fundamental physical quantities.
Reason (R):	They are independent of each other.

Both A and R are true and R is the correct explanation of A
Both A and R are true but R is not the correct explanation of A
A is true but R is false
A is false but R is true

3.

Assertion (A):	Radian is the unit of solid angle.
Reason (R):	One radian is the angle subtended at the centre of a circle by an arc of length equal to its radius.

Both A and R are true but R is not the correct explanation of A
Both A and R are true and R is the correct explanation of A
A is true but R is false
A is false but R is true

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