If (theta) is equal to (alpha) at the time the box is just about to…
If (theta) is equal to (alpha) at the time the box is just about to slide down the…
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As the end Q of the plank is raised, the component of W, normal to…
As the end Q of the plank is raised, the component of W, normal to plank, will A.…
A piece of stone attached to one end pf string is whirled round in a…
A piece of stone attached to one end pf string is whirled round in a horizontal circle. When…
The term torque means
The term torque means A. the moment B. the resultant of several forces acting on a body in…
which of the following pairs of physical quantities comprises vectors?
which of the following pairs of physical quantities comprises vectors? A. capacitance and inductance B. force ratio and…
During the same interval, it is observed that a train travels the same distance as…
During the same interval, it is observed that a train travels the same distance as does a lorry.…
Which of the following has the highest surface tension?
Which of the following has the highest surface tension? A. cold water B. soapy water C. warm water…
The work function of a metal is 4.65ev and the metal is illuminated with a…
The work function of a metal is 4.65ev and the metal is illuminated with a radiation of 6.86ev.…
An electron charge 1.6 x 10-19C is accelerated in vacuum from rest at zero volt…
An electron charge 1.6 x 10-19C is accelerated in vacuum from rest at zero volt towards a plate…
The half-life of a radioactive substance is 2 seconds. Calculate the decay constant
The half-life of a radioactive substance is 2 seconds. Calculate the decay constant A. 0.035s-1 B. 0.151s-1 C.…