Question
The source of the Sun's energy is the process of
–Solution
Nuclear fusion is a nuclear reaction in which two or more atomic nuclei join together, or "fuse", to form a single heavier nucleus. During this process, matter is not conserved because some of the mass of the fusing nuclei is converted to energy which is released. Fusion is the process that powers active stars.
Which Bohr postulate explains the stability of the hydrogen atom?
A sound wave has a frequency of 500 Hz and wavelength of 0.68 m. What is the speed of sound?
A body is projected vertically upwards with a velocity of 98 m/s. The time interval during which it is at a height greater than 392 m is:
(Take g...One kilogram of ice at 0° C is mixed with one kilogram of water at 85° C. The final temperature of the mixture is
(Tale specific heat of ...
A piece of ice is floating in water kept in a beaker. When all the ice melts the level of water will -
A 220 V, 100 W bulb is connected to a 110 V source. Calculate the power consumed by the bulb
The coefficient of volume expansion of glycerin is 49 × 10-5 K-1. Find the fractional change in its density for a 20°C rise i...
Light from a point source in air falls on a spherical glass surface (n=1.5 c and radius of curvature = 10 cm). The distance of the light source from the...
The surface tension of water on adding detergent to it –
