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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.
When a dielectric field is completely full in among charges rearrangement of the charges inside the dielectric medium takes place and the force among the same tow charge reduces by
What is the type of bonding in silicon? (A) Ionic. (B) Covalent. (C) Metallic. (D) Ionic + Metallic Ans: Bonding in silicon is covalent type.
The effects of short circuits: A short circuit is a path for current where a path should not exist, the path is generally considered to have a low resistance. If a short circui
GIve live examples for like and unlike parallel forces
A solenoid is a coil wound into a tightly packed helix. In physics, the term solenoid shows a long, thin loop of wire, often wrapped over a metallic core, which makes a magnetic f
why the condition of maxima is changed in thin films
1. Fill a sink or bath tub with water. 2. Practice tapping the cork on the surface of the water (about 3 _times per second works well) to create evenly spaced waves. 3. Tappi
Q) why we cant use the nuclear reactor concept in making fuel for our usages? Ans) Beacause nuclear reacters produse a huge energy which can''t be in our control and we can''t co
write a program about f=ma
Megavoltage therapy: Kerst developed the betatron which accelerates electrons to high energy .It open a new radiation therapy era-the supervoltage or megavoltage era.Another
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