Dual Nature — Physics

Test your limits with our Elite Pro-Vault Questions for physics

Question 1
EasyJEE

The photoelectric effect was explained by:

A. Einstein
B. Planck
C. Maxwell
D. Bohr
Question 2
EasyJEE

Workfunctionofametalis2eV.Thresholdwavelengthis(hc=1240eVnm):Work function of a metal is 2 eV. Threshold wavelength is (hc=1240 eV nm):

A. 620 nm
B. 310 nm
C. 1240 nm
D. 2480 nm
Question 3
EasyJEE

de Broglie wavelength of aparticleofmassmmovingwithvelocityva particle of mass m moving with velocity v is:

A. h/(mv)h/(mv)
B. hv/mh v/m
C. mv/hmv/h
D. hm/vh m/v

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