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Suppose you sound a 1056-Hz tuning fork at the same time you strike a note on the piano and hear 2 beats/second. You tighten the piano string very slightly and now hear 3 beats/s
B-Infrared (IR) Radiant Heat Heat radiation can be achieved by using infrared (IR) radiation it penetrates about 3mm in the skin. excessive exposure can cause erythema(redden
what are coherent waves
State of Motion: Inertia is the tendency of an object to resist alters in its state of motion. State of motion of an object is described by its velocity - speed with a direc
A plane monochromatic wave travelling in a homogeneous medium goes into a denser medium. What are the changes in (i) Frequency (ii) amplitude (iii) speed of propagation & (iv) Phas
It having of an evacuated glass or quartz bulb having anode A and cathode C. The cathode is semi-cylindrical solid on which a thin layer of photo-sensitive material is coated.
LIST DIFFRENT THEM
The intermolecular forces (F) of attraction can be described as given: 1) Cohesion. The force of attraction among molecules of the same substance is known as the force of cohe
working principle of alpha,beta and gamma scintillation counter
A worker lifts a 10 kilogram block a vertical height of 2 meters. The work he does on the block is: a) 5 Joules b) 20 Joules c) 49 Joules d) 200 Joules Ans:
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