IIT-JEE Exam

The real number k for which the equation, 2x^3 + 3x
+ k = 0 has two distinct real roots in [0, 1]
(1) lies between –1 and 0
(2) does not exist
(3) lies between 1 and 2
(4) lies between 2 and 3

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IIT-JEE Other Question
The magnetic field in a traveling electromagnetic
wave has a peak value of 20 nT. The peak value of
electric field strength is -
(1) 9 V/m (2) 12 V/m
(3) 3 V/m (4) 6 V/m The number of values of k, for which the system of
equation : (k + 1) x + 8y = 4k, kx + (k + 3) y = 3k –1,
has no solution, is -
(1) 2 (2) 3 (3) infinite (4) 1