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Q Define threshold frequency?
The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident radiation may be. The threshold frequency is dissimilar for different metals.
A ballerina begins a tour jete with angular speed ?i and a rotational inertia consisting of two parts: Ileg = 1.55 kg*m^2 for her leg extended outward at angle ? = 90.0 to her body
Relation among velocity wavelength and Frequency: Consider a wave of wavelength , frequency f and travelling with velocity v. The distance travel by the sound wave during th
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:
A spacecraft is moving relative to the earth An observer on earth finds that , according to her clock 3601s elapse between 1pm and 2pm on the spacecraft''s clock. what is the space
Q. Define magnetic flux? Magnetic flux ( φ ): The magnetic flux (φ) correlated with a surface held in a magnetic field (B) is defined as the number of magnetic lines of f
On the basis of mutual interactions or behavior of several materials in an external magnetic field, the materials are dividing in three basic categories. (i) Diamagnetic materi
if a body contain n1 electron and n2 proton what is the total charge on the body?
Linear circuit :- It can be described as one, whose parameters are constant i.e. they do not change with voltage or current.
The device which changes chemical energy into electrical energy is called as electric cell. Battery is a host of constant emf but not constant current.
Derive expression for total power consumed when three appliances of power p1 p2 nd p3 are connected in series.
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