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Photoelectric electricity is produced directly from solar energy when which following are absorbed in a semiconductor to create an electric current?
a) Protons
b) Electrons
c) Neutrons
d) Photons
Ans- Photons
The merry-go-round described in the previous problem is pushed with a constant force of 53 N. What is the angular acceleration?
The superposition theorem is a very useful network theorem. Write its statement
How can ultrasonic waves be detected Kundt’s tube method? Ultrasonic waves can be detected by Kundt’s tube. There at the nodes, lycopodium powder collects into the form of heap
how Michelson interferometer can be used to measure the wavelength of sodium light.
Is beats, which we study in physic similar as we consider beats of sounds like bass. bits
What are bare fibers? It used mostly with PMMA fibers and refers to the optics which have no external protection sheath.
Describe how Dewar flasks limit energy transfer A Dewar flask (thermos) is a device that resists energy transfer. Explain how Dewar flasks limit energy transfer by listing the
A charge q1 is 9.00um is at the origin, and a charge q2 is -4.00um is on the x- axis 0.30m from the origin. find the electric field strength at point P, which is on the y - axis 0.
Stretch the fore-finger, central finger and thumb left hand mutually perpendicular. Then if the fore-finger shows in the direction of field and the central in the direction of cu
The velocity with which the group of waves travels is called as group velocity or the velocity with which a ray packet goes is called as group velocity
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