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CBSE Class 12-science Answered

The frequencies of K(alpha), K(beta), and L(alpha) X-rays of a material are y1, y2 and y3 respectively. Prove that y1=y2+y3
Asked by Tanya Sethi | 02 Apr, 2014, 10:19: PM
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Answered by | 14 Apr, 2014, 07:24: PM

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CBSE 12-science - Physics
which answer is correct and most appropriate with explanation
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Asked by mishrigupta19319 | 08 Apr, 2024, 06:28: PM
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CBSE 12-science - Physics
ans the questions wit reason
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Asked by mishrigupta19319 | 07 Apr, 2024, 11:23: AM
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CBSE 12-science - Physics
what is the princple of working laser light?
Asked by mazhartahsildar143 | 07 May, 2020, 01:44: PM
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CBSE 12-science - Physics
The threshold wavelength of a photosensitive metal is 275nm.calculate the maximum velocity of the photoelectron ejected when light of 180nm is incident on it.    ​​​​​​​How to solve this?? 
Asked by Hemanthrakshitha95 | 03 Mar, 2020, 02:55: PM
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CBSE 12-science - Physics
A resistance of 600 , an inductor of 0.4 H and a capacitor of 0.01 uF are connected in series to an AC source of variable frequency. Find the frequency of AC source for which current in the circuit is maximum. Also calculate the band width and quality factor for the circuit.
Asked by shivakumarshreyas24 | 01 Mar, 2020, 08:12: AM
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CBSE 12-science - Physics
numericals based on einstein photoelectric equation  
Asked by khushimassey437 | 31 May, 2019, 08:41: AM
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CBSE 12-science - Physics
Hi tick the correct option in each case
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Asked by jain.pradeep | 26 May, 2019, 06:42: PM
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CBSE 12-science - Physics
Calculate no of photons passing through a ring of unit area in unit time if light of intensity 100 wm -2 and wavelength  400nm is fallingnormally on the ring 
Asked by manasvijha | 19 Mar, 2019, 07:17: PM
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CBSE 12-science - Physics
In the wave picture of light, intensity of light is determined by square of the amplitude of wave. What determines the intensity of light in the photon picture of light?
Asked by rohitraman1115 | 08 Jan, 2019, 04:33: PM
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CBSE 12-science - Physics
How would you prove the dual nature of matter?
Asked by Topperlearning User | 21 May, 2014, 09:18: AM
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