The speed of light is equal to the product of what two factors that are related

Question

The speed of light is equal to the product of what two factors that are related to spectral emissions? A) Periodicity and sound B) Sound and wavelength C) Frequency and sound D) Frequency and wavelength If light has a frequency of 6 times 10^4 s, what is its wavelength? A) 2.0 times 10^4 m B) 0.50 times 10^12 m. C) 0.50 times 10^4 m. D) 2.0 times 10^12 m An s orbital has what shape? A) Circular B) Spherical C) Oblong D) Dumbbells What is the shape of a p orbital? A) oblong B) Doughnut shaped C) Dumbbell D) spherical The Heisenberg Uncertainty Principle relates what two physical phenomena associated with an electron? A) Wavelength and momentum B) Position and velocity C) Isotopes and position. D) Momentum and position.

Explanation / Answer

1. E = hY, Y = frequency= C/wave length

C= frequecy* wave length ( product of frequency and wave length) ( D is correct answer)

2. given frequency= 6*104/s, speed of light= 3*108 m/s , wave length= 3*108/ 6*104= 5000 m ( c is correct)

3. S orbitals are spherical ( b is correct)

4. P orbitals are dumb-bell shaped ( b is correct)

5. heisenberg uncertanity principle states that it is difficult to correctly determine the position and momentum of particel. Hence it deals with position and momentum, ( D is correct)

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