Physics
(i) Define couple.
(ii) State the S.I. unit of moment of couple.
Force
ICSE 2019
14 Likes
Answer
(i) Two equal and opposite parallel forces, not acting along the same line, form a couple.
(ii) The S.I. unit of moment of couple is Newton x meter or Nm.
Answered By
9 Likes
Related Questions
(i) Define critical angle.
(ii) State one important factor which affects the critical angle of a given medium.
An electromagnetic radiation is used for photography in fog.
(i) Identify the radiation.
(ii) Why is this radiation mentioned by you, ideal for this purpose?
Two bodies A and B have masses in the ratio 5:1 and their kinetic energies are in the ratio 125:9. Find the ratio of their velocities.
(i) Name the physical quantity which is measured in calories.
(ii) How is calorie related to the S.I. unit of that quantity?