![The ground stated energy for the hydrogen atom is 5.44 x 10^-19J . If an electron drops from zero energy to ground state, calculate the frequency of the emitted radiation. [h = 6.6 x 10^-34 Js]](https://erudites.ng/wp-content/uploads/2020/06/past-questions-and-answers.jpg)
by Sunday | Nov 9 | Physics JAMB
A. 5.0 x 1016 Hz B. 2.0 x 1016 Hz C. 5.0 x 1015 Hz D. 2.0 x 1015 Hz E. No correct option Correct Answer: Option E = No correct option Explanation ∆E = hf f = (∆E)/h = (5.44 x 10-19)/6.6 x 10-34 = 8.24 x...
by Sunday | Nov 9 | Physics JAMB
A. low voltage B. steady voltage C. high pressure D. low pressure Correct Answer: Option D – low pressure Explanation pumping out of the gas in the discharge tube reduces the pressure inside the tube, therefore, electricity is conducted at low...
by Sunday | Nov 9 | Physics JAMB
A. π° B. (π)/2° C. (π)/3° D. 0° Correct Answer: Option D = 0°
by Sunday | Nov 9 | Physics JAMB
A. 500.0J B. 250.0J C. 62.5J D. 50.0J E. no correct option Correct Answer: Option E = no correct option Explanation Total inductance,L = L¹ + L² = m 15 + 5 = 20mH = (20)H/1000 1 = 5A Energy of inductor, ½LI² = (1)/2 X (20)/1000 X 5‾² = 0.25...
by Sunday | Nov 9 | Physics JAMB
A. 1Ω B. 2Ω C. 5Ω D. 10Ω Correct Answer: Option D = 10Ω Explanation R = (Vg)/lg = G, where lg = current through galvanometer R = resistance of the multiplier G = resistance of the galvanometer ∴ G = (vg-R)/lg 5(1000/10) – 490 = 500 -490 =...
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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