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Q. What is cut-off or stopping potential?
The minimum negative (retarding) potential specified to the anode for which the photo electric current becomes zero is called the cut-off or stopping potential.
A 15-kg child experiences an acceleration of 0.25 m/s2 as she is pulled 1.7 m horizontally across the floor by her sister. Calculate the change in the child's kinetic energy.
Specific heat of a gas is numerically equivalent to the amount of heat essential to raise the temperature of unit mass of gas by 1 0 C. In order to raise the temperature of unit ma
what is the use of muslin bag in a dry cell
Explain Gauss's law in electrostatics? 1C of charge is same to the charge of n number of electrons in magnitude. What is the value of n? What happens to the force between t
Question: In estimate the integral one evaluates in applying Ampere's Law one is Answer: The integral in Ampere's Law is a path integral and the path is an imaginary c
If the angle of incidence is 60 degrees,then what is the angle of deviation?
Making a simple reflecting telescope A simple reflecting telescope can be made from a concave mirror obtain from a shaving mirror. The mirror is arranged wooden box of suitable
What is nucleus? It is the type of an atom where whole mass of the atom is supposes to be concentrated. Or it is the central part of an atom which have proton and
Who makes fiber optics? Glass manufacturers mostly make Glass fibers. Mainly chemical companies fabricate PMMA fibers. Companies, both private and public, manufacture other kin
When a metal is illuminated with radiation with a wavelength of 152 nm, photoelectrons are ejected with a velocity of 7.9 x 10 5 m/s. What is the work function, in eV, of th
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