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प्रश्न
What is the value of the speed of gamma radiations in air or vacuum?
उत्तर
Speed of γ radiation = 3 × 108 m/s in air or vacuum.
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संबंधित प्रश्न
Under which conditions does the nucleus of an atom tend to radioactive?
A radioactive source emits three types of radiations. Name them.
(i) Name the radiations which are charged.
(ii) Name the radiations which are most penetrating.
(iii) Name the radiations which travel with the speed of light.
(iv) Name the radiations which have the largest mass.
Radioactive substances were found to give off three types of rays. Name them. How do they
(a) React to the magnetic field?
(b) React to the electric field?
(c) Act when different thickness of lead sheets is placed in their path?
A radioactive nucleus `""_"Z"^"A"` X first emits a beta particle and then an alpha particle to give the resulting nucleus `""_"Q"^"P"` Y What will be the values of P and Q in terms of A and Z?
How is a zinc sulphide screen affected when a cathode ray beam strikes it?
How is a cathode ray tube used to convert an electrical signal into a visual signal?
What are ‘Becquerel rays’?
State three common properties of beta rays and cathode rays.
A radioactive nucleus \[\ce{^A_ZX}\] undergoes spontaneous decay in the sequence \[\ce{^A_ZX -> _{Z-1 }B -> _{Z-3}C -> _{Z-2}D }\], where Z is the atomic number of element X. The possible decay particles in the sequence are ______.
