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1
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+2
-0.5
The number of integral values of $$k$$ for which the equation $$7\cos x + 5\sin x = 2k + 1$$ has a solution is
A
4
B
8
C
10
D
12
2
IIT-JEE 2002 Screening
MCQ (Single Correct Answer)
+2
-0.5
An ideal spring with spring-constant k is hung from the ceiling and a block of mass M is attached to its lower end. The mass is released with the spring initially unstretched. Then the maximum extension in the spring is
A
$${{4Mg} \over k}$$
B
$${{2Mg} \over k}$$
C
$${{Mg} \over k}$$
D
$${{Mg} \over {2k}}$$

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