Physics

The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The … Read More

If a sound wave goes from a cold air region to a hot air region, its … Read More

The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones … Read More

Calculate the mass of ice that would melt when 2kg of copper is quickly transferred from … Read More

The equation of a wave travelling along the positive x-direction is given by; y = 0.25 … Read More

I. A liquid boils when its saturated vapour pressure is equal to the external pressure II. … Read More

The temperature gradient across a copper rod of thickness 0.02m, maintained at two temperature junctions of … Read More

A gas at a volume of V0 in a container at pressure P0 is compressed to … Read More

A piece of substance of specific head capacity 450JKg-1K-1 falls through a vertical distance of 20m … Read More

A solid weigh 10 .00 N in air, 6 N when fully immersed in water and … Read More