Advent of Modern Physics | Practice MCQs Physics for Mdcat | mosaicbro.com

Advent of Modern Physics | Practice MCQs Physics for Mdcat

7 of 73 questions (Page 4 of 11)

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22 If the energy of the photon is $E$, it is equivalent to mass:
Correct Answer: A
Explanation: From $E=mc^2 \Rightarrow m=E/c^2$
23 The discrete nature of radiation was introduced by:
Correct Answer: B
No explanation available for this question.
24 The electron was discovered by:
Correct Answer: B
No explanation available for this question.
25 An ideal black body is:
Correct Answer: D
No explanation available for this question.
26 As the temperature of black body is raised, the wavelength corresponding to maximum intensity:
Correct Answer: B
Explanation: Wien's displacement law: $\lambda_{max}T = b$ (constant)
27 Planck’s concept was used by:
Correct Answer: C
No explanation available for this question.
28 Radiations are always emitted or absorbed in the form of packets of energy. This is the statement of:
Correct Answer: D
No explanation available for this question.
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