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Positive rays are very identical to...

Positive rays are very identical to

A

`alpha`-rays

B

`beta`-rays

C

`gamma`-rays

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
A
Charges of positive rays and `alpha`-rays same moreover the mass of helium atom=2`xx`mass of proton atom, therefore positive rays are very identical to `alpha`-rays.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTRONS AND PROTONS-Exercise 1
  1. In Millikan's oil drop experiment, a charged oil drop of mass 3.2xx10...

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  2. The specific charge of a proton is 9.6xx10^(7)"C kg"^(-1). The speci...

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  3. Positive rays are very identical to

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  4. Few metals when irradiated with ultraviolet light emits

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  5. Non-dependence of e/m oof the cathode ray particles on nature of the g...

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  6. The velocity of electrons emitted from the electron gun can be increas...

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  7. A beam of cathode rays is subjected to crossed electric (E ) and magn...

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  8. In the phenomenon of electric discharge through gases at low pressure ...

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  9. Canal rays are

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  10. Cathode rays enter a magnetic field making oblique angle with the line...

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  11. Millikan's oil drop experiment established that

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  12. The photoelectric threshould wavelength for a metal surface is 6600 Å....

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  13. Ligth of wavelength 4000 Å is incident on a metal plate whose work fun...

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  14. The frequency of incident light falling on a photosensitive metal plat...

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  15. If the work function for a certain metal is 3.2 xx 10^(-19) joule and ...

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  16. Ultraviolet light of wavelength 300nn and intensity 1.0Wm^-2 falls on ...

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  17. Light of wavelength 4000 Å is incident on a sodium surface for which t...

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  18. Photoelectric emission occurs only when the incident light has more th...

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  19. A photosensitive metallic surface has work funtion hv(0). If photons o...

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  20. Radiation two photons having energies twice and five times the work fu...

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