AIIMS Physics: Questions 205 - 208 of 500

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Question number: 205

» Atoms and Nuclei » Radioactive Decay Law

Appeared in Year: 2003

Assertion-Reason▾

Assertion (Ꭺ)

Radioactive nuclei emit β - particles.

Reason (Ꭱ)

Electrons exist inside the nucleus.

Choices

Choice (4) Response
a. Ꭺ is true but Ꭱ is false
b. Both Ꭺ and Ꭱ are false
c. Ꭺ is false but Ꭱ is true
d. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

Question number: 206

» Kinematics » Scalars and Vectors » Scalar and Vector Products

Appeared in Year: 1998

Assertion-Reason▾

Assertion (Ꭺ)

The dot product of one vector with another vector may be a scalar or a vector.

Reason (Ꭱ)

If the product of two vectors is a vector quantity, then product is called a dot product.

Choices

Choice (4) Response
a. Ꭺ is false but Ꭱ is true
b. Both Ꭺ and Ꭱ are false
c. Ꭺ is true but Ꭱ is false
d. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

Question number: 207

» Properties of Solids & Liquids » Viscosity

Appeared in Year: 1995

Assertion-Reason▾

Assertion (Ꭺ)

Machine parts are jammed in winter.

Reason (Ꭱ)

The viscosity of lubricant used in machine part decrease at low temperature,

Choices

Choice (4) Response
a. Ꭺ is false but Ꭱ is true
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 false

Question number: 208

» Atoms and Nuclei » Nuclear Fission and Fusion

Appeared in Year: 2004

Assertion-Reason▾

Assertion (Ꭺ)

Energy is released in nuclear fission.

Reason (Ꭱ)

Total binding energy of the fission fragments is larger than the total binding energy of the parent nucleus

Choices

Choice (4) Response
a. Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ
b. Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ
c. Ꭺ is true but Ꭱ is false
d. Both Ꭺ and Ꭱ are false

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