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In a laboratory experiment on emission f...

In a laboratory experiment on emission from atomic hydrogen in a discharge tube only a small number of lines are observed whereas a large number of lines are pressent in the hydrogen spectrum of a star .This is because in a laboratory

A

the amount of hydrogen taken is smaller than that pressent in the star

B

the temperature of hydrogen is much smaller than that of the star

C

the pressure of hydrogen is much smaller than that of the star

D

the gravitational pull is much smaller than that of the star

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • A large number of dark lines in the solar spectrum are :

    A
    Fraunhofer lines
    B
    Fresnel lines
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  • Given the value of Rydberg constant is 10^7 m^-1 , the wave number of the last line of the Balmer series in hydrogen spectrum will be:

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  • Hydrogen atoms are excited from ground state to the state of priciple quantum number 4.Then the number of spectral lines observed will be

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