Properties Of Solids And Liquids Question 45
Question: A bullet moving with a uniform velocity v, stops suddenly after hitting the target and the whole mass melts be m, specific heat S, initial temperature 25°C, melting point 475°C and the latent heat L. Then v is given by [NCERT 1972]
Options:
A)
B)
C)
D)
Show Answer
Answer:
Correct Answer: B
Solution:
Firstly the temperature of bullet rises up to melting point, then it melts.
Hence according to
therefore
therefore