Why the Fusion reaction takes place at high temperature among the nuclei, though these experience repulsion between them:

Two wires of equal lengths carrying equal currents bent in the form of two loops, one in square shape and the other in circular shape having one turn only are suspended in same, uniform magnetic field perpendicular to the plane of loops. Choose the correct option

Which of the following statements are correct?
A. Relative motion between a coil and a magnet induces the electric current.
B. The charges in motion can experience force due to a stationary magnet.
C. Mutual inductance of a pair of coils does not depend on their separation as well as their relative orientation.
D. Self inductance plays the role of inertia.
Choose the correct answer from the options given below:

At a place, the vertical component of Earth's magnetic field is \(\sqrt{3}\) times its horizontal component. If the total intensity of Earth's magnetic field at the place is 0.4 G, then the horizontal component of Earth's magnetic field is:

A regular hexagon of side 12 cm has a charge of 6 \( \mu\text{C} \) at each of its vertices. What will be the potential at the centre of the hexagon?

eV (electron volt) is the unit of

A resistor of resistance \( 30 \, \Omega \) and a capacitor of capacitance \( (250 \pi^{-1}) \, \mu\text{F} \) are connected in series to a 220 V, 50 Hz source. The current in the circuit is

Interference of light obeys the Principle of conservation of:

A step-up transformer operates on a 220 V line and supplies a current of 2 A. The ratio of primary and secondary winding is 1 : 25. Assuming 100% efficiency, the output power of the transformer is:

Read the passage and answer the question : There are thousands of varieties of rice in India alone. The diversity of rice in India is one of the richest in the world. Basmati rice is distinct for its unique aroma and flavour and 27 documented varieties of Basmati are grown in India. There is reference to Basmati in ancient texts, folklore and poetry, as it has been grown for centuries. Several attempts have also been made to patent uses, products and processes based on Indian traditional herbal medicine, e.g. turmeric, neem. There has been growing realisation of the injustice, inadequate compensation and benefit sharing between developed and developing countries. The Indian Parliament has recently cleared a Bill that takes such issues into consideration, including patent terms emergency provisions and research and development initiative.
How many varieties of rice India has?

The basicity of \(\text{H}_3\text{PO}_4\) is :

The current in a circuit having constant resistance is tripled. The power dissipation will become :

Answer the question on basis of passage given below :
Vitamins represent a group of organic compounds which are needed in small amount for the healthy growth and maintenance of our body. These are not synthesized by the body and are supplied in the diet. The deficiency of vitamins can be supplemented with medicines. Which vitamins are water soluble ?