AIIMS Physics: Questions 245 - 248 of 500

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Question number: 245

» Properties of Solids & Liquids » Pressure Due to a Fluid Column

Assertion-Reason▾

Assertion (Ꭺ)

Smaller drops of liquid resist deforming forces better than the larger drops.

Reason (Ꭱ)

Excess pressure inside a drop is directly proportional to its surface area.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 246

» Properties of Solids & Liquids » Streamline and Turbulent Flow

Appeared in Year: 1994

Assertion-Reason▾

Assertion (Ꭺ)

The shape of an automobile is so designed that its front resembles the stream line pattern of the fluid through which it moves.

Reason (Ꭱ)

The shape of the automobile is made stream lined in order to reduce resistance offered by the fluid.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Ꭺ is false but Ꭱ is true

c.

Ꭺ is true but Ꭱ is false

d.

Both Ꭺ and Ꭱ are false

Question number: 247

» Current Electricity » Electric Cell and Its Internal Resistance

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

A larger dry cell has higher emf.

Reason (Ꭱ)

The emf of a dry cell is proportional to its size.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Ꭺ is true but Ꭱ is false

Question number: 248

» Ray Optics » Resolving Power of Microscopes and Astronomical Telescopes

Appeared in Year: 2005

Assertion-Reason▾

Assertion (Ꭺ)

The resolving power of a telescope is more if the diameter of the objective lens is more.

Reason (Ꭱ)

Objective lens of large diameter collects more light.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

d.

Ꭺ is true but Ꭱ is false

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