Question 10 of 15
2 answers:
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Answer:
option (B)
Explanation:
mass of proton, m = m
charge of proton, q = e
Time period, T = T
Initially the speed of proton is v.
The time period of the proton when it is moving in magnetic field perpendicular to the direction of magnetic field is given by
Where, r be the radius of circular path.
The relation between r and the speed v is given by
Where, B be the strength of magnetic field. Substitute this value of r in the expression of time period
Here, we observe that the expression for the time period is independent to v and r so, as we change the velocity, the time period remains same.
Answer:
0.167 m
Explanation:
By the definition of the velocity if a wave ,
The velocity of light, v, is the product of its wavelength, λ , and its frequency, f.
V= fλ
frequency - number of occurances in a unit time
Wavelength - distance between corresponding points of two consecutive waves
(check the graph for wavelength)
