JEE Main 11 Jan 2019 Shift 1 Solved Paper

Section: Physics

Question : 16 of 90

Marks: +1, -0

If the deBronglie wavelength of an electron is equal to 10–3 times the wavelength of a photon of frequency 6 × 1014 Hz, then the speed of electron is equal to : (Speed of light = 3 × 108 m/s Planck's constant = 6.63 × 10–34 J.s Mass of electron = 9.1× 10–31 kg)

[11 Jan 2019 Shift 1]

1.45 × 106 m/s
1.7 × 106m/s
1.8 × 106m/s
1.1 × 106m/s

Validate

Go to Question:

Prev Question

Next Question