Advertisements
Advertisements
Question
How is a cathode ray tube used to convert an electrical signal into a visual signal?
Advertisements
Solution
In a CRT, the external P.D. refers to the electrical signal. The P.D. controls the deflection of electrons beam which strikes in the desired fashion direction and converts the electrical signal to visual signal.
RELATED QUESTIONS
State two similarities and two dissimilarities between the γ-rays and X-rays.
What is meant by Radioactivity?
Name the Different Radiations Which Are Emitted by the Radioactive Substances.
Are all the radiations mentioned by you, emitted in a single radioactive decay?
Are all the radiations viz. α, β and γ emitted in a single radioactive decay?
Justify with reason, whether the following nuclear reactions are allowed or not.
\[\ce{^A_Z X -> ^A_{Z + 1}Y + ^0_{-1}β}\]
It is advised not to touch a radioactive substance by hand. Give reason.
State three ways of obtaining an electron-beam.
The mean lives of a radioactive substance are 1620 and 405 years for β-emission and β-emission respectively. The time after which three fourth of a sample will decay if it is decaying both by β-emission and β-emission simultaneously will be ______ years.
(Take ln 2 = 0.693)
Calculate the time interval between 33% decay and 67% decay if half-life of a substance is 20 minutes.
A deuteron strikes 8O16 nucleus with subsequent emission of an alpha particle. Identify the nucleus so produced:
