SaraNextGen Study App [2023-24]
Last Updated On [03-11-2023]

Two springs  and  are identical but  is harder than . Let  and  represent the work done when the springs are stretched through the same distance and  and  are the work done when these are stretched by equal forces, then which of the following is true

a)

 and

b)

 and

c)

 and

d)

 and


Question ID - 50855 :-

Two springs  and  are identical but  is harder than . Let  and  represent the work done when the springs are stretched through the same distance and  and  are the work done when these are stretched by equal forces, then which of the following is true

a)

 and

b)

 and

c)

 and

d)

 and

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

 is the same

Forces are the same

 As

 and

;  but



Next Question :

There were 24 students in a class. One of them, who was 18 years old, left the class and his place was filled up by a newcomer. If the average of the class thereby, was lowered by one month, the age of the newcomer is

(a)  14 years             (b)15 years               (c)16 years               (d) 17 years


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