The energy transition in hydrogen atom occurs from n = 3 to n=2 energy level. (R 1.097 10 m-1). (a) Calculate the wavelength of the emitted electron. (b) Will this electron be visible? (c) Which spectrum series does this photon belong to?
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Explanation:
The energy transition in hydrogen atom occurs from n = 3 to n=2 energy level. (R 1.097 10 m-1). (a) Calculate the wavelength of the emitted electron. (b) Will this electron be visible? (c) Which spectrum series does this photon belong to?2. Some verbs of reporting are given in the box. Choose the appropriate verbs
and fill in the blanks in the following sentences.
were complaining shouted replied
remarked ordered suggested
(i) "I am not afraid,"
the woman.
(ii) "Leave me alone," my mother
(iii) The children
that the roads were crowded and noisy.
(iv) "Perhaps he isn't a bad sort of a chap after all,
the master
(v) "Let's go and look at the school ground,"
the sports teacher
(vi) The traffic police
all the passers-by to keep off the road
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