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STATEMENT-1: When an electrical heater i...

STATEMENT-1: When an electrical heater is switched on, the colour of the filament gradually changes from red to yellow to almost white.
STATEMENT-2: Wien's displacement law states that `lambda_(m)T = b` (constant).

A

Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation, for Statement-1.

B

Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.

C

Statement-1 is True, Statement-2 is False.

D

Statement-1 is a False, Statement-2 is True.

Text Solution

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The correct Answer is:
A
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D MUKHERJEE-MISCELLANEOUS QUESTION 2-Missellaneous Qns-2 (Assertion)
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  4. STATEMENT-1: When two sounds of slightly different frequecies are hear...

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  5. STATEMENT-1: When a sphere falls under gravity or moves up due to buoy...

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  6. STATEMENT-1: When two sounds of equal frequencies and slightly differe...

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  9. STATEMENT-1: In high-quality optical devices, such as camera, binocula...

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  10. STATEMENT-1: Real images cannot be formed by reflection of light in a ...

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  11. STATEMENT-1: When an electrical heater is switched on, the colour of t...

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  12. STATEMENT-1: The specific heat capacity of a gas at constant pressure ...

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  13. STATEMENT-1: When two identical strings stretcheed to slightly differe...

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  14. STATEMENT-1: A single lens will have two different focal lengths if th...

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  15. STATEMENT-1: When a closed organ pipe vibrates, the pressure of the ga...

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  16. STATEMENT-1: When a coil is connected to a cell, no current flows thro...

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  18. STATEMENT-1: In an X-ray tube, the wavelengths of the characteristic X...

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  19. STATEMENT-1: When alpha- and beta-particles pass through external elec...

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