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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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- If a vector 2i+3j+8k is perpendicular to the vector 4j-4i+αk, then value of α is
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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
- The frequency of an alternating voltage is 50 cycles per second and its amplitude
- If a vector 2i+3j+8k is perpendicular to the vector 4j-4i+αk, then value of α is
- If the value of potential in an A.C circuit is 10 V, the peak value of potential is
- A marble block of mass 2 kg lying on ice when given a velocity of 6 m/s is stopped
- Two concentric coils each of radius equal to 2π cm are placed at right angles
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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