Match List - I with List - II. List-I List-II (a) Source of microwave frequency (i) Radioactive decay of nucleus (b) Source of infrared frequency (ii) Magnetron (c) Source of Gamma Rays (iii) Inner shell electrons (d) Source of X -rays (iv) Vibration of atoms and molecules (v) LASER (vi) RC circuit Choose the correct answer from the options given below:

(a)-(ii), (b)-(iv), (c)-(i), (d)-(iii)

(a)-(ii), (b)-(iv), (c)-(vi), (d)-(iii)

(a)-(vi), (b)-(iv), (c)-(i), (d)-(v)

(a)-(vi), (b)-(v), (c)-(i), (d)-(iv)

Match each disease with its correct type of vaccine: (a) Tuberculosis (i) Harmless virus (b) Whooping cough (ii) Inactivated toxin (c) Diphtheria (iii) Killed bacteria (d) Polio (iv) Harmless bacteria

(a) (b) (c) (d) (iv) (iii) (ii) (i)

(a) (b) (c) (d) (ii) (i) (iii) (iv)

(a) (b) (c) (d) (iii) (ii) (iv) (i)

(a) (b) (c) (d) (i) (ii) (iv) (iii)

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Which of the following is considered a semantic barrier to communication?

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Important Questions on Electromagnetic Waves

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

Ohm's Law is applicable to

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

Asthma may be attributed to:

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

How do cytokine barriers provide innate immunity in humans?

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

Long distance short- wave radio broadcasting uses

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

MALT constitutes about _______ percent of the lymphoid tissue in human body.

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

The device or substances which DO NOT obey ohm's law is/are

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

It is often observed that the chances of a person suffering from measles in his or her lifetime are low if he or she has suffered from the disease in their early childhood. Justify the statement.

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

Equation for wave vector is:

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

$I - V$ characteristic of a copper wire of length $L$ and area of cross-section $A$ is shown in figure. The slope of the curve becomes

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

The main barrier that prevents the entry of micro-organisms into our body is

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Physics>Modern Physics>Electromagnetic Waves>Sources of Electromagnetic Waves

Match List - I with List - II.

List-I		List-II
(a)	Source of microwave frequency	(i)	Radioactive decay of nucleus
(b)	Source of infrared frequency	(ii)	Magnetron
(c)	Source of Gamma Rays	(iii)	Inner shell electrons
(d)	Source of $X$ -rays	(iv)	Vibration of atoms and molecules
		(v)	LASER
		(vi)	RC circuit