Electromagnetic Theory [CSIR (Council of Scientific & Industrial Research) Physical Sciences]: Questions 63 - 65 of 96
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Question 63
Appeared in Year: 2016
Question MCQ▾
A screen has two slits, each of width , with their centers at a distance apart. It is illuminated by a monochromatic plane wave travelling along the axis.
The intensity of the interference pattern, measured on a distance screen, at an angle to the axis is: (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | zero for only | |
b. | maximum for | |
c. | maximum for | |
d. | zero for |
Question 64
Appeared in Year: 2016
Question MCQ▾
A parallel plate capacitor is formed by two circular conducting plates of radius separated by a distance , where . It is being slowly charged a current that is nearly constant. At an instant when the current is , the magnetic induction between the plates at a distance from the centre of the plate, is: (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |
Question 65
Appeared in Year: 2016
Question MCQ▾
Two uniformly charged insulating solid sphere and , both of radius , carry total charges and , respectively. The sphere are placed touching each other as shown in the figure.
If the potential at the centre of the sphere is and that at the centre of is , then the difference is: (December)
Choices
Choice (4) | Response | |
---|---|---|
a. | ||
b. | ||
c. | ||
d. |