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The e/m ratio for cathode rays:...

The e/m ratio for cathode rays:

A

varies with the element forming the cathode in the discharge tube

B

varies with the gas in the discharge tube

C

is constant

D

has the smallest value when the discharge tube is filled with hydrogen

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S_(1) : Bohr model is applicable for Be^(2+) ion . S_(2) : Total energy coming out of any light source is integral multiple of energy of one photon. S_(3) : Number of waves present in unit length if wave number . S_(4) : e/m ratio in cathode ray experiment is independent of the nature of the gas . Select the correct set of True-False for above statement.

RESONANCE-DPP-QUESTIONS
  1. Which is not true with respect to cathode rays :

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  2. Select the correct statement

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  3. The e/m ratio for cathode rays:

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  4. Select the correct statement(s)

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  5. The e/m ratio for Anode rays

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  6. The highest value of e/m of anode rays has been observed when the disc...

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  7. Which of the following shows an increasing value of e//m?

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  8. The ratio of the e/m values of a proton and an alpha-particle is:

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  9. Which has highest specific charge?

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  10. Rutherford's scattering experiment, which established the nuclear mode...

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  11. The mass of an electron in amu is

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  12. How many moles of protons will have total charge equal to about 4825 c...

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  13. Which of the following samples does not contain a total of 1.8066xx10^...

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  14. Total number of H2 molecules that can be obtained from all hydrogen at...

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  15. The number of neutrons present in 7 gm of phosphonium (PH4^+) ion is [...

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  16. Total number of ions in 17.1 g Al2(SO4)3 is [NA=6xx10^23]

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  17. If 36 grams of ozone gas is replaced by an another unknown gas 'X' kee...

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  18. The potential energy of the electron present in the ground state of L...

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  19. a-particles are projected towards the following metals,with the same k...

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  20. Which of the following pairs has different values of e/m:

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