The surfaces of conveyor belts are made rough so as to?
The surfaces of conveyor belts are made rough so as to?
protect them while carrying loads
prevent the loads from slipping
enable them to carry more load
make them stronger
Correct answer is B
Rough surface promotes friction. Therefore, roughness of conveyor belt prevents the load from slipping
When a ray of light is incident normally on an air- glass interface, its angle of refraction is ...
Magnetism at the centre of a bar magnet is ...
Which of the following statements is an advantage of nuclear fusion over nuclear fission? ...
Which of the following is NOT correct? i. the pitch of a sound note depends on the frequency of v...
Which of the following physical processes cannot be explained by the molecular theory of matter? ...