A radiation of wavelength 2000 A lies in...

A radiation of wavelength 2000 A lies in the

Infrared region

Visible region

Ultraviolet region

X-ray region

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

MODEL TEST PAPER - 7
KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos
MODEL TEST PAPER 02
KCET PREVIOUS YEAR PAPERS|Exercise PHYSICS|60 Videos

Similar Questions

Explore conceptually related problems

The threshold wavelength for a metal is 4000 Å. A radiation of wavelength 5000 Å is incident on the metal. Can it cause P.E.E?

A photo sensitive metal is incident with radiations of wavelength 400 nm and then with radiations of wavelength 800 nm. What will be the difference in the maximum energy of the photoelectrons ?

A photon of radiation of wavelength 600 nm has an energy E. The wavelength of photon of radiation having energy 0.25 E is

The threshold wavelength of a photosensitive metal is 662.5 nm. If this metal is irradiated with a radiation of wavelength 331.3 nm, find the maximum kinetic energy of the photoelectrons. If the wavelength of radiation is increased to 496.5 nm, calculate the change in maximum kinetic energy of the photoelectrons. (Planck's constant h = 6.625 xx 10^(-34) Js and "speed of light in vacuum" = 3 xx 10^(8)ms^(-1) )

Electromagnetic Radiation of wavelength 242 nm is just sufficient to ionize the sodium atom. Calculate the ionization energy sodium in kJ "mol"^(-1) .

Hydrogen atom in its ground state is excited by means of a monochromatic radiation of wavelength 970.6 Å. How many different transitions are possible in the resulting emission spectrum? Find the longest wavelength amongst these. (lonisation energy of hydrogen atom in its ground state is 13.6 eV and take h=6.6xx10^(-34)Js) Data : Wavelength of incident radiation = 970.6 Å = 970.6 X 10^(-10)m Ionisation energy of hydrogen atom in its ground state = 13.6 eV (i) Number of possible transitions = ? (ii) Longest wavelength emitted = ?

The electrical conductivity of a semiconductor increases when electromagnetic radiation of wavelength shorter than 2480 nm is incident on it. The band gap (in eV) for semi-conductor is

KCET PREVIOUS YEAR PAPERS-MODEL TEST PAPER - 8-PHYSICS

In the nuclear reaction, ""(1)H^(2)+(1)H^(3)=(2)H^(3)=(2)He^(4)+X, the...
Text Solution
|
The photoelectric threshold frequency for potassium is 3 xx 10^(14) Hz...
Text Solution
|
A radiation of wavelength 2000 A lies in the
Text Solution
|
The mass of a neutron
Text Solution
|
The peack value of a certain sinusoidal AC is 1.414 amp. It r.m.s valu...
Text Solution
|
In a balanced Wheatstone's network the galvanometer is replaced by ano...
Text Solution
|
The insertion of a new metal into a thermocouple
Text Solution
|
The resistance of a thermistor varies with temperature according to th...
Text Solution
|
A.T.G. gives a deflection of 30^(@) for a certain current at one place...
Text Solution
|
A transformer is used to
Text Solution
|
The surface dencity of charges is maximum
Text Solution
|
Dip at the poles is
Text Solution
|
The moment of the couple acting on a bar magnet of moment 0.2 Am^(2) i...
Text Solution
|
4 xx 10^(-4) joules of work is done in moving a charge of 5 microcoulo...
Text Solution
|
What is the resolving power of an instrument?
Text Solution
|
Interference of light can be explained by assuming light waves to be
Text Solution
|
A thin prism of refracting angle 5^(@) deviates the red and blue rays ...
Text Solution
|
The intensity of illumination at a distances of 5 m from a 200 candela...
Text Solution
|
The relation between the refractive index and the critical angle of a ...
Text Solution
|
The majority charge carriers in P -type semiconductor are
Text Solution
|