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Recent questions tagged x-rays
+2
votes
1
answer
In Moseley'* equation √f = a(z - b), a and b are constant. Find their values with the help of the following data.
asked
Apr 1, 2019
in
Physics
by
kratos
modern physics
x-rays
jee
jee mains
class-12
+2
votes
1
answer
A free atom of iron emits Kα X-rays of energy 6.4 keV. Calculate the recoil kinetic energy of the atom. Mass of an iron atom = 9.3 x 10 ^-26 kg.
asked
Apr 1, 2019
in
Class 12
by
kratos
x-rays
class-12
+2
votes
1
answer
The rate at which heat is produced in the X-ray tube is approximately
asked
Mar 30, 2019
in
Physics
by
kratos
isc
modern physics
x-rays
jee main 2021
jee
icse
jee mains
jee main
class-12
+3
votes
1
answer
Use Moseley'* law b = 1 to find the frequency of the Kα X-rays of La (Z = 57) if the frequency of the Kα X-rays of Cu (Z = 29)
asked
Mar 26, 2019
in
Physics
by
kratos
modern physics
x-rays
jee
jee mains
class-12
quantum mechanics
+1
vote
1
answer
If the velocity of a particle is increased 3times then the percentage decreases in its Debroglie’* wavelength
asked
Mar 24, 2019
in
Physics
by
kratos
neet
atomic and nuclear physics
x-rays
aiims
dual nature of radiation and matter
class-12
+3
votes
1
answer
50% of X-rays obtained from a Coolidge tube pass through 0.3 mm thick aluminium foil.
asked
Mar 24, 2019
in
Physics
by
kratos
neet
modern physics
x-rays
aiims
class-12
+2
votes
1
answer
If the frequency of Kα, Kβ and Lα, X-ray lines of a substance are vKα, Kβ and vLβ
asked
Mar 20, 2019
in
Physics
by
kratos
modern physics
x-rays
jee
jee mains
class-12
+1
vote
1
answer
50% of the X-ray coming from a Coolidge tube is able to pass through a 0.1mm thick aluminium foil.
asked
Mar 14, 2019
in
Physics
by
kratos
neet
modern physics
x-rays
aiims
jee
jee mains
class-12
+2
votes
1
answer
Figure (44-Q2) shows the intensity-wavelength relations of X-rays coming from two different Coolidge tubes.
asked
Mar 11, 2019
in
Class 12
by
kratos
x-rays
neet
aiims
class-12
+3
votes
1
answer
The energy of the characteristics X-ray photon in a Coolidge tube comes from
asked
Mar 7, 2019
in
Class 12
by
kratos
x-rays
isc
class-12
icse
+2
votes
1
answer
The distance between the cathode (filament) and the target in an X-ray tube is 1.5 m. If the cutoff wavelength is 30 pm,
asked
Feb 21, 2019
in
Class 12
by
kratos
x-rays
class-12
+1
vote
1
answer
u200bFor ****** X-rays, (a) the wavelength is higher
asked
Feb 4, 2019
in
Class 12
by
kratos
x-rays
class-12
+2
votes
1
answer
Regarding X-ray tube operation: a. Peak kV (kVp) and mA may be varied independently of one another
asked
Jan 23, 2019
in
Physics
by
kratos
x-rays
class-12
modern physics
atomic and nuclear physics
+3
votes
1
answer
Electrons of mass m with de-Broglie wavelength λ fall on the target in an X-ray tube. The cutoff wavelength (λo) of the emitted X-ray is
asked
Jan 21, 2019
in
Class 12
by
kratos
neet
x-rays
jee
dual nature of radiation and matter
jee mains
class-12
+1
vote
1
answer
X-ray beam can be deflected (a) by an electric field
asked
Jan 18, 2019
in
Class 12
by
kratos
x-rays
class-12
+3
votes
1
answer
For molybdenum the wavelength of the Kα line is 0.71 nm and of the Kβ line it is 0.63 nm.
asked
Jan 12, 2019
in
Physics
by
kratos
modern physics
x-rays
jee
jee mains
class-12
+1
vote
1
answer
Continuous X-rays are made to strike a tissue paper soaked with polluted water. The incoming X-rays excite the atoms of the sample by knocking
asked
Jan 2, 2019
in
Class 12
by
kratos
x-rays
class-12
+1
vote
1
answer
The anode voltage of a photocell is kept fixed. The wavelength (λ) of the light falling on the cathode is gradually changed.
asked
Dec 31, 2018
in
Physics
by
kratos
dual nature of radiation
isc
x-rays
electrons and photons
jee
icse
jee mains
class-12
atomic physics
+1
vote
1
answer
Frequencies of Ka X-rays of different materials are measured.
asked
Dec 26, 2018
in
Class 12
by
kratos
x-rays
class-12
+3
votes
1
answer
When 40 kV is applied across an X-ray tube, X-ray is obtained with a maximum frequency of 9.7 x 10^18 Hz.
asked
Dec 17, 2018
in
Class 12
by
kratos
x-rays
class-12
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