A Rectangular Sheet Of The Fixed Perimeter With Sides Having Their Lengths In The Ratio 8 15
1) 24 2) 32 3) 45 4) 60 Solution: (1) 24 and (3) 45 Let the side of the square... View Article
1) 24 2) 32 3) 45 4) 60 Solution: (1) 24 and (3) 45 Let the side of the square... View Article
Let f : [0,1] → R(the set of all real numbers) be a function. Suppose the function f is twice... View Article
1) 0 < f (x) < ∞ 2) -1 / 2 < f (x) < 1 / 2 3) -1... View Article
The vernier calipers have two scales: the main scale and the vernier scale. The 10 divisions on the vernier scale... View Article
For heavy nuclei, the protons on either side of the nucleus repel each other due to electrostatic repulsion. Hence the... View Article
Coulomb’s law is not a universal law. Coulomb’s law is true for point charges and not for charge distributions. As... View Article
Screw gauge can be used only for the external measurement while vernier caliper can be used for both external and... View Article
The threshold wavelength of a photo material is the maximum wavelength of incident radiation above which the photoelectric emission completely... View Article
Gamma rays are extremely harmful to external radiations. They can penetrate through the barriers that can stop alpha particles and... View Article
Distance is the measure of how far apart objects are. The distance between the two objects can never be negative.... View Article
The electric field is normal or perpendicular to the surface of the conductor. If they are not normal then there... View Article
The electric dipole moment is the measure of the separation of positive charge and the negative charge. The electric dipole... View Article
The galvanometer is a very sensitive device. For a small current of few microamperes, the galvanometer deflection will be maximum.... View Article
The electric field can be made uniform between the parallel plates of the capacitors if the plates are separated by... View Article
The energy is stored in the spring as elastic potential energy. The elastic potential energy stored in the spring is... View Article
The principle of increase of entropy is that entropy always increases and remains constant only in a reversible process. The... View Article
Yes, light carries momentum. Light does not have mass but has momentum. The momentum of light is in the form... View Article
No, sound travels much slower than the speed of light. The speed of sound in air is about 340 metres... View Article
Astronomer and mathematician Ptolemy thought that the earth was in the centre of the universe. In the 4th century, two... View Article
Copper is not a semiconductor. Copper is used as interconnects in silicon integrated circuits to reduce consumption of powers and... View Article