Resistors R1 and R2 are connected in series to an emf source that has negligible internal resistance. What happens to the current through R1 when a third resistor R3 is connected in parallel with R2?
In a young's double-slit experiment, the slits are 0.03 cm apart and the screen is placed 1.54 m away. The distance between the central bright fringe and fourth bright fringe is 1 cm. Calculate the wavelength of light used.
Does the interference of light obey the law of conservation of energy?
State and explain Huygen's principle and use it to verify laws of reflection on the basis of wave theory.
A stationary motion sends a wave of 150 kHz towards a truck approaching at a speed of 120 km/hr. What is the frequency of wave reflected back to the detector? (velocity of sound in air is 340 m/s)
If the pressure amplitude of a sound wave is halved, by what factor does the intensity of the wave change?
PathshalaNepal.com is a Registered Company of E. Pathshala Pvt Ltd Nepal. Registration number : 289280
© 2020. All right Reversed.E. Pathshala Pvt Ltd