Physics 2008 Discuss

• Home
• Learn
• JAMB/UTME (2008)
• Study Physics 2008
• question 10367

If electron are accelerated from rest through a potential difference of...

Share Question Share to WhatsApp

Question 48

If electron are accelerated from rest through a potential difference of 10kv, what is the wavelength of the associated electron
[m = 9.1 x 10^-31kg, e = 1.6 x 10^-19C, h = 6.6 x 10^-34js]

A

1.22 x 10^-11m

B

3.87 x 10^-10m

C

2.27 x 10¹¹m

D

2.27 x 10¹⁴m

Explanation

Share Answer

=	__h
	(2evm)

=	____6.6 x 10-34
	(2 x 1.6x10-19 x 10000 x 9.1x10-34)

1.223 x 10^-11m

Correct option: A

Try this quiz in in E-test/CBT Mode
switch to Physics 2008 in CBT Mode

Previous Question Next Question