A ray of light passing through the centre of curvature of...
A ray of light passing through the centre of curvature of a concave mirror is reflected by the mirror at?
0o
45o
90o
180o
Correct answer is A
No explanation has been provided for this answer.
Which of the following simple machines is a second class lever? ...
The diagram above shows two capacitors P and Q of capacitance 2μF and 4μF respectively connect...
The viscosity of a fluid depends on the following factors except the? ...
For what value of 6 are the forces in the diagram above in equilibruim ...