A body of mass x kg is moving with a velocity of 100 ms-1. Its de Broglie wavelength is 6.62 × 10-35m. Hence x is (h = 6.62 ×10-34 Js)

Question

A body of mass x kg is moving with a velocity of 100 ms-1. Its de Broglie wavelength is 6.62 × 10-35m. Hence x is (h = 6.62 ×10-34 Js) (A) 0.15 kg (B) 0.2 kg (C) 0.1 kg (D) 0.25 kg

Tardigrade Admin · Accepted Answer

λ =(h/m v) =(6.62 × 10-34/6.62 × 10-35 × 100) =0.1 kg

Q. A body of mass $x k g$ is moving with a velocity of $100 m s^{- 1}$ . Its de Broglie wavelength is $6.62 \times 1 0^{- 35} m$ . Hence x is ( $h = 6.62 \times 1 0^{- 34}$ Js)

$0.15 k g$

$0.2 k g$

$0.1 k g$

$0.25 k g$

$λ = \frac{h}{m v}$

$= \frac{6.62 \times 1 0 ^{- 34}}{6.62 \times 1 0 ^{- 35} \times 100}$

$= 0.1 k g$

Q. A body of mass xkg is moving with a velocity of 100ms−1. Its de Broglie wavelength is 6.62×10−35m. Hence x is (h=6.62×10−34 Js)

0.15kg

0.2kg

0.1kg

0.25kg