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A wire is stretched under a force. If the wire suddenly snaps the temperature of the wire
Options
(a) remains the same
(b) decreases
(c) increases
(d) first decreases then increases
Correct Answer:
increases
Explanation:
Work done on the wire to strain it will be stored as energy which is converted to heat. Therefore the temperature increases.
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- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
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Topics: Properties of Bulk Matter
(130)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A thin glass(refractive index 1.5) lens has optical power of -5D in air.
- Time period of oscillation of a magnet is 2 sec. When it is remagnetised
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
- The distance travelled by a particle starting from rest and moving with an acceleration
- The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
Topics: Properties of Bulk Matter (130)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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