The limiting frictional force between two surface depends...
The limiting frictional force between two surface depends on
I. the gaseous reaction between the surfaces
II. the nature of the surfaces in contact
III. the relative velocity between the surfaces
I only
I & IV only
II only
III only
Correct answer is C
- Friction depends on the nature of the surfaces in contact
Which of the following substances is most viscous at room temperature? ...
A simple pendulum makes 50 oscillations in one minute. What is its period of oscillation? ...
A man walks 1km due east and then 1km due north. His displacement is ...
In semi-conductor, the carriers of current at room temperature are ...
I. High thermal capacity. II. High sensitivity. III.Easy readability. IV. Accuracy over a wide ra...
A cell can supply currents of 0.60 A and 0.30 A through a 2.0 ω and a 5.0 ω resistor res...