Correct answer
A. solid and hard
Explanation
solid and hard is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________?
The scales of temperature are based on two fixed points which are_________________?
A rubber cord of cross-sectional area 2cm2 has a length of 1m. When a tensile force of 10N is applied the length of the cord increases by 1cm. What is the youngs modulus of rubber ?
If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from______________?
The sharpness of resonance is__________________?
Which one of the following has the greatest energy gap ?