AIIMS (All India Institute of Medical Sciences) Physics: Questions 25 - 28 of 500

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Question number: 25

» Wave Optics » Young's Double Slit Experiment

Appeared in Year: 1999

MCQ▾

Question

In Young’s experiment, monochromatic light is used to illuminate the two slits A and B. Interference fringes are observed on a screen placed in front of the slits. Now if a thin glass plate is placed normally in the path of the beam coming from the slit then – [AIIMS]

Monochromatic light illuminate two slits

Monochromatic Light Illuminate Two Slits

In figure monochromatic light is used to illuminate the two slits A and B is shown. A thin glass plate is placed normally in the path of the beam coming from the slit.

Choices

Choice (4) Response

a.

The fringe width will decrease

b.

The fringe width will increase

c.

There will be no change in the fringe width

d.

The fringes will disappear

Question number: 26

» Properties of Solids & Liquids » Viscosity

MCQ▾

Question

The diagram (fig. ) shows a venturimeter, through which water is flowing. The speed of water at is. The speed of water at (taking g = 1000 cm/sec2) is

A rough figure of venturimeter

A Rough Figure of Venturimeter

Figure shows the diagram of venturimeter, through which water is flowing.

[AIIMS]

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 27

» Magnetic Effects of Current and Magnetism » Magnet Oscillations

Appeared in Year: 1996

MCQ▾

Question

The period of oscillation of a vibration magnetometer depends on the following factors – [AIIMS]

Choices

Choice (4) Response

a.

I and H only

b.

I and M only

c.

M and BH only

d.

I, M and BH only

Question number: 28

» Magnetic Effects of Current and Magnetism » Current Loop as Magnetic Dipole

Appeared in Year: 2006

MCQ▾

Question

Circular loop of a wire and a long straight wire carry currents IC and Ie, respectively as shown in figure. Assuming that these are placed in the same plane, the magnetic fields will be zero at the centre of the loop when the separation H is – [AIIMS]

A circular loop of a wire and a long straight wire

A Circular Loop of a Wire and a Long Straight Wire

In figure a circular loops of a wire and a long straight wire carry current IC and i.e., respectively are shown.

Choices

Choice (4) Response

a.

b.

c.

d.

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