AIIMS MBBS Entrance Test 2019 Physics Paper with Answer & Solutions 25 May Second Shift Part 8

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Q-32 Assertion: For communication antennae length should be comparable to

Reason: It leads to maximum power

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (3)

Q-33 Assertion: Amplitude modulation shows more interference than frequency modulation with noise.

Reason: Interference is function of amplitude of modulation wave with carrier wave.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (2)

AM shows more interference with noise

Both assertion & reason are true but reason does not explain assertion.

Q-34: Assertion: For an element generally (N = number of neutrons, Z = atomic number) Z N

Reason: Neutrons always experience attractive nuclear force.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (2)

Solutions:

Both assertion & reason are true but reason does not explain assertion.

Q-35: Assertion: Positive feedback is essential for converting a transistor into an oscillator.

Reason: Positive feedback works between cut-off and saturation region.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (2)

Q-36: Assertion: Vibrational degree of freedom of a di-atomic gas molecule appears at every high temperature

Reason: Di-atomic gas has two Vibrational degree of freedom in one direction.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (2)

Q-37: Assertion: is liquidities more easily than.

Reason: Critical temperature of NH3 is more than.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (1)

Q-38: Assertion: Even though net external force on a body is zero, momentum need not be conserved.

Reason: The internal interaction between particles of a body cancels out momentum of each other.

(1) If both assertion and reason are true and reason is the correct explanation of assertion.

(2) If both assertion and reason are true but reason is not the correct explanation of assertion.

(3) If assertion is true but reason is false.

(4) If both assertion and reason are false.

Answer: (4)

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