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Chapter 15: Problem 2129
Which of the following electromagnetic waves has the highest frequency? (A) radiowaves (B) microwaves (C) \(\gamma\) rays (D) \(\mathrm{x}\) rays
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A new system of unit is evolved in which the values of \(\mu_{0}\) and \(\varepsilon_{0}\) are 2 and 8 respectively. Then the speed of light in this system will be (A) \(0.25\) (B) \(0.5\) (C) \(0.75\) (D) 1
The frequencies of \(\mathrm{x}\) rays, \(\gamma\) rays and ultraviolet rays are
respectively \(\mathrm{p}, \mathrm{q}\) and \(\mathrm{r}\) then
(A) \(p
The electric and magnetic field of an electromagnetic wave are (A) in phase and perpendicular to each other (B) in phase and parallel to each other (C) in opposite phase and perpendicular to each other (D) in opposite phase and parallel to each other
An electromagnetic wave (A) can be deflected by electric field (B) can be deflected by magnetic field (C) can be deflected by both electric and magnetic field (D) none of these
Which of the following rays are not electromagnetic waves? (A) \(\alpha\) rays (B) \(\gamma\) rays (C) \(\beta\) rays (D) heat rays
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