Question 13

An assertion (A) and a reason (R) are given below.
Assertion (A): Tungsten filament is used for making light bulbs.
Reason (R): Tungsten has a high melting point.

Choose the correct option.

Solution

Both A and R is true and R is the correct explanation of A because tungesten is used in bulb because its melting point is very higher than any other metal.

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RRB NTPC 27 April 2016 - Shift 2

An assertion (A) and a reason (R) are given below. Assertion (A): Tungsten filament is used for making light bulbs. Reason (R): Tungsten has a high melting point. Choose the correct option.

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An assertion (A) and a reason (R) are given below.
Assertion (A): Tungsten filament is used for making light bulbs.
Reason (R): Tungsten has a high melting point.

Choose the correct option.