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Recent questions tagged wave particle quality
+2
votes
1
answer
Light from a bulb falls on a wooden table but no photoelectron are emitted. Why?
asked
Mar 30, 2019
in
JEE
by
kratos
photoelectric effect
class- 11
class-11
jee
jee mains
class-12
wave particle quality
structure of atom
+3
votes
1
answer
In photoelectric effect,we assume the photon energy is proportional to its frequency and is completely absorbed
asked
Mar 27, 2019
in
Class 12
by
kratos
photoelectric effect
neet
photons
cbse
aiims
matter waves
dual nature of radiation and matter
class-12
wave particle quality
+1
vote
1
answer
Consider a metal exposed to light of wavelength 600 nm. The maximum energy of the electron doubles when light of wavelength 400 snm is used.
asked
Mar 26, 2019
in
Class 12
by
kratos
photoelectric effect
neet
dual nature of radiation and matter
class-12
wave particle quality
+2
votes
1
answer
An atom absorbs a photon of wavelength 500 nm and emits another photon of wavelength 700 nm.
asked
Mar 22, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+3
votes
1
answer
A sphere of radius 100 cm is placed in the path of a parallel beam of light of large aperture.
asked
Mar 14, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+3
votes
1
answer
A small piece of cesium metal (ϕ = 1.9 eV) is kept at a distance of 20 cm from a large metal plate having a charge density of 1.0 x 10^-9 J
asked
Mar 10, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+2
votes
1
answer
What is the threshold frequency of a photon for photoelectric emission from a metal of work function 1eV ?
asked
Mar 5, 2019
in
Class 12
by
kratos
photoelectric effect
isc
neet
dual nature of radiation and matter
icse
class-12
wave particle quality
+2
votes
1
answer
The electric field associated with a light wave is given by E = E0 sin [{1.57 x 10^7 m^-1) (x - ct)].
asked
Mar 1, 2019
in
Class 12
by
kratos
photoelectric effect
dual nature of radiation and matter
class-12
wave particle quality
+3
votes
1
answer
A monochromatic light is used in an photoelectric experiment on photoelectric effect. The stopping potential -
asked
Feb 28, 2019
in
Physics
by
kratos
modern physics
atom models
quantum physics
class-12
jee mains
wave particle quality
jee
photoelectric effect
+2
votes
1
answer
When photon of energy 4.0 eV strikes the surface of a metal A, the ejected photoelectrons have maximum kinetic energy TA eV
asked
Feb 25, 2019
in
Physics
by
kratos
photoelectric effect
upsee
jee
dual nature of radiation and matter
jee mains
class-12
wave particle quality
nuclear physics
+3
votes
1
answer
A 100 watt light bulb giving monochromatic light of wavelength 6000 is placed at the centre of a spherical chamber of radius 0.20 m.
asked
Feb 17, 2019
in
Class 12
by
kratos
photoelectric effect
neet
jee
dual nature of radiation and matter
jee mains
class-12
wave particle quality
+3
votes
1
answer
Visible light has wavelengths in the range of 400 nm to 780 nm. Calculate the range of energy of the photons of visible light.
asked
Feb 17, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+3
votes
1
answer
In an experiment on photoelectric effect, the emitter and the collector plates are placed at a separation of 10 cm
asked
Feb 11, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+2
votes
1
answer
The Kinetic Energy of the fastest photoelectron emitted using light of wavelength λ is E; While the K.E. of the fastest
asked
Jan 27, 2019
in
JEE
by
kratos
photoelectric effect
dual nature of radiation
class- 11
jee
dual nature of radiation and matter
jee mains
class-12
wave particle quality
structure of atom
+2
votes
1
answer
A gas absorbs photon of 355 nm and emits at two wavelengths. If one of the emission is at 680 nm, the other is at
asked
Jan 23, 2019
in
Chemistry
by
kratos
photoelectric effect
chemical bonding and molecular structure
class-11
jee
physical chemistry
atomic structure
jee mains
class-12
wave particle quality
structure of atom
+3
votes
1
answer
A silver ball is suspended by a string in a vacuum chamber and ultraviolet light of wavelength 2000 is directed at it.
asked
Jan 18, 2019
in
Physics
by
kratos
photoelectric effect
atom models
modern physics
wave particle quality
jee
jee mains
class-12
quantum physics
+2
votes
1
answer
In an experiment on photoelectric effect, light of wavelength 400 nm is incident on a cesium plate at the rate of 5.0 W.
asked
Jan 16, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+2
votes
1
answer
Show that it is not possible for a photon to be completely absorbed by a free electron.
asked
Jan 14, 2019
in
Class 12
by
kratos
photoelectric effect
class-12
wave particle quality
+3
votes
1
answer
A metal is irradiated with light of wavelength 660 nm. Given that the work that the work function of the metal is 1.0 eV,
asked
Jan 12, 2019
in
Class 12
by
kratos
photoelectric effect
isc
neet
dual nature of radiation and matter
icse
class-12
wave particle quality
+3
votes
1
answer
A beam of light from a source L is incident normally on a plane mirror fixed at a certain distance
asked
Jan 10, 2019
in
Class 12
by
kratos
photoelectric effect
neet
electromagnetic waves
jee
optics
jee mains
diffraction
class-12
wave particle quality
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