A laser (light amplification by stimulated emission of radiation) provides a coherent (in phase )nearly monochromatic source of high intensityi light. Lasers are used in eye surger, CD/DVD players basic research etc. some miodern eye lasers can be tuned to emit a desired wavelength. The following table shows the `lamda(nm),v(s^(-1))` and E(J) but some of the data is missing.
The value of A and H will be ............ and .................. respectively.
A laser (light amplification by stimulated emission of radiation) provides a coherent (in phase )nearly monochromatic source of high intensityi light. Lasers are used in eye surger, CD/DVD players basic research etc. some miodern eye lasers can be tuned to emit a desired wavelength. The following table shows the `lamda(nm),v(s^(-1))` and E(J) but some of the data is missing.
The value of A and H will be ............ and .................. respectively.
The value of A and H will be ............ and .................. respectively.
A
`6329Å,6.14xx10^(12)`
B
`6329Å,4.5xx10^(24)`
C
`4.5xx10^(15),1401Å`
D
`1401Å,6.14xx10^(12)`
Text Solution
Verified by Experts
For A
`C=v lamda, lamda =C/v`
`lamda=(3xx10^(8)ms^(-1))/(4.74xx10^(14)s^(-1))=6329xx10^(-10)M`
`lamda=6329Å=A`
For (H)`E=hv , v=E/h`
`v=(3xx10^(-9)J)/(6.63xx10^(-34)Js)=4.5xx10^(24)`
`C=v lamda, lamda =C/v`
`lamda=(3xx10^(8)ms^(-1))/(4.74xx10^(14)s^(-1))=6329xx10^(-10)M`
`lamda=6329Å=A`
For (H)`E=hv , v=E/h`
`v=(3xx10^(-9)J)/(6.63xx10^(-34)Js)=4.5xx10^(24)`
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A laser ( light amplification of stimulated emission of radiation ) provides a coherent ( in phase ) nearly monochromatic source of high intensty light. Lasers are used in eye surgery, CD // DVD players basic research, etc. some modern eye lasers can be "tuned" to emit a desired wavelength. The following table shows the lambda ( nm ) , v( s^(-1)) and E ( J) but some of the data is missing : Which of the following statement (s) is // are correct ? ( i) E lies in UV region while G lies in visible region (ii) The energies D and F alone are not sufficient to remove electron from isolated gaseous H-atom. (iii) In the spectrum the increasing order of lambda for all type of lasers is II lt III lt IV lt I (iv) None of the above statement is correct
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A laser ( light amplification of stimulated emission of radiation ) provides a coherent ( in phase ) nearly monochromatic source of high intensty light. Lasers are used in eye surgery, CD // DVD players basic research, etc. some modern eye lasers can be "tuned" to emit a desired wavelength. The following table shows the lambda ( nm ) , v( s^(-1)) and E ( J) but some of the data is missing : The value of A and H will be "........................." and "............................." respectively.
A laser ( light amplification of stimulated emission of radiation ) provides a coherent ( in phase ) nearly monochromatic source of high intensty light. Lasers are used in eye surgery, CD // DVD players basic research, etc. some modern eye lasers can be "tuned" to emit a desired wavelength. The following table shows the lambda ( nm ) , v( s^(-1)) and E ( J) but some of the data is missing : The value of A and H will be "........................." and "............................." respectively.
A
`6329 Å , 6.14 xx 10^(12)`
B
`6329Å , 4.5 xx 10^(24)`
C
`4.5 xx 10^(15),1401Å`
D
`1401Å,6.14 xx 10^(12)`
A laser (light amplification by stimulated emission of radiation) provides a coherent (in phase )nearly monochromatic source of high intensityi light. Lasers are used in eye surger, CD/DVD players basic research etc. some miodern eye lasers can be tuned to emit a desired wavelength. The following table shows the lamda(nm),v(s^(-1)) and E(J) but some of the data is missing. If an electrons absorbs energy equalto D in hydrogen atom in first excited state and after reaching highest excited level it returns to ground level. How many possible lines will be obtained in hydrogen spectrum?
A laser (light amplification by stimulated emission of radiation) provides a coherent (in phase )nearly monochromatic source of high intensityi light. Lasers are used in eye surger, CD/DVD players basic research etc. some miodern eye lasers can be tuned to emit a desired wavelength. The following table shows the lamda(nm),v(s^(-1)) and E(J) but some of the data is missing. If an electrons absorbs energy equalto D in hydrogen atom in first excited state and after reaching highest excited level it returns to ground level. How many possible lines will be obtained in hydrogen spectrum?
A
10
B
6
C
3
D
none of these
A laser (light amplification by stimulated emission of radiation) provides a coherent (in phase )nearly monochromatic source of high intensityi light. Lasers are used in eye surger, CD/DVD players basic research etc. some miodern eye lasers can be tuned to emit a desired wavelength. The following table shows the lamda(nm),v(s^(-1)) and E(J) but some of the data is missing. Which of the following statement (s) is/are correct? (i) E lies in UV region while G lies in visible region (ii) The energies D and F alone are not sufficietn to remove electron from isolated gaseous H=atom. (iii) In the spectrum the increasing order of lamda , for all type of laser is II lt III lt IV lt I (iv) None of the above statement is correct
A laser (light amplification by stimulated emission of radiation) provides a coherent (in phase )nearly monochromatic source of high intensityi light. Lasers are used in eye surger, CD/DVD players basic research etc. some miodern eye lasers can be tuned to emit a desired wavelength. The following table shows the lamda(nm),v(s^(-1)) and E(J) but some of the data is missing. Which of the following statement (s) is/are correct? (i) E lies in UV region while G lies in visible region (ii) The energies D and F alone are not sufficietn to remove electron from isolated gaseous H=atom. (iii) In the spectrum the increasing order of lamda , for all type of laser is II lt III lt IV lt I (iv) None of the above statement is correct
A
Only (iv)
B
(i) and (ii) only
C
(i),(ii) and (iii) only
D
(ii) and (iii) only
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Laser is/ are