Boolean algebra is essentially based on
|
(a) Truth |
(b) Logic |
(c) Symbol |
(d) Numbers |
Boolean algebra is essentially based on
|
(a) Truth |
(b) Logic |
(c) Symbol |
(d) Numbers |
(b) Logic
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Which of the following is incorrect statement regarding photon
|
(a) Photon exerts no pressure |
(b) Photon energy is hv |
|
(c) Photon rest mass is zero |
(d) None of these |
If a radioactive substance reduces to
of its original mass in 40 days, what is its half-life
|
(a) 10 days |
(b) 20 days |
(c) 40 days |
(d) None of these |
In the figure, shown the magnetic induction at the centre of there arc due to the current in portion AB will be

|
(a) |
(b) |
(c) |
(d) Zero |
For total internal reflection to take place, the angle of incidence i and the refractive index μ of the medium must satisfy the inequality
|
(a) |
(b) |
(c) sin i < |
(d) sin i > |
A simple pendulum with bob of mass m and conducting wire of length L swings under gravity through an angle 2θ. The earth’s magnetic field component in the direction perpendicular to swing is B. Maximum potential difference induced across the pendulum is

|
(a) 2BL sin |
(b) BL sin |
|
(c) BL sin |
(d) 2BL sin |