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.

A Screen with Two Slits

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

Edit

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.

Edit

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.

Two Uniformly Charged Insulating Solid Sphere

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.

Edit