Specific Heat Capacities of Gases — Physics STD 11 Science — Question

Explain why solids can support both longitudinal and transverse waves, but only longitudinal waves can propagate in gases, and

At what point the velocity and acceleration are zero in S.H.M?

What is one electron-volt?

Why does a child feel more pain when she falls down on a hard cement floor, than when she falls on the soft muddy ground in the garden?

Assume that the law of gravitation changes from inverse square to inverse cube. Does the angular momentum of a planet about the sun will remain constant?

Mark the correct options.

1. The luminous efficiency of a monochromatic source is always greater than that of a white light source of same power.
2. The luminous efficiency of a monochromatic source of wavelength 555nm is always greater than that of a white light source of same power.
3. The illuminating power of a monochromatic source of wavelength 555nm is always greater than that of a white light source of same power.
4. The illuminating power of a monochromatic source is always greater than that of a white light source of same power.

Why can an engine working under isothermal conditions produce no useful work?

Define the effect of shape of the earth on the value of g.

What will be the ratio of root mean square forces of hydrogen and oxygen molecules at the same temperature?