Home
Class 12
PHYSICS
An electron enters a parallel plate capa...

An electron enters a parallel plate capacitor with horizontal speed u and is fond to deflect by angle `theta` on leaving the capacitor as shown. It is found that `tan theta = 0.4` and gravity is negligible
If the initial horizontal speed is doubled, then tan` theta` will be

A

`0.1`

B

`0.2`

C

`0.8`

D

`1.6`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • KVPY 2021

    KVPY PREVIOUS YEAR|Exercise PART I (Chemistry)|2 Videos

Similar Questions

Explore conceptually related problems

An electron enters a parallel plate capacitor with horizontal speed u and is found to deflect by angle theta on leaving the capacitor as shown. It is found that an theta = 0.4 and gravity is negligible If the initial horizontal speed is doubled, then will be -

A stone is thrown with a velocity v at an angle theta with the horizontal.Its speed when it makes an angle beta with the horizontal is

A particle is fired from a point on the ground with speed u making an angle theta with the horizontal.Then

If an electron enters a space between the plates of a parallel plate capacitor at an angle theta_(1) with the plates and leaves at an angle theta_(2) to the plates, the ratio of its kinetic energy while entering the capacitor to that while leaving will be

If 3 tan^(2)theta - 4sqrt(3)tan theta + 3 = 0, find the acute angle theta .

A particle is thrown with speed u of an angle theta with the horizontal when the particle makes an angle phi with the horizontal its speed changes to v

A particle is projected with a speed v at an angle theta with the horizontal. Find the mean power delivered by gravity during the ascent of the particle.

If a projectile is projected with initial speed u and angle theta from horizontal then what will be its average power up to time when it will hit the ground again ?

A particle is projected with speed u at angle theta to the horizontal. Find the radius of curvature at highest point of its trajectory

KVPY PREVIOUS YEAR-KVPY-All Questions
  1. The flat face of a plano-convex lens of focal length 10 cm is silvered...

    Text Solution

    |

  2. Two identical metallic square loops L(1) " and " L(2) are placed next ...

    Text Solution

    |

  3. An electron enters a parallel plate capacitor with horizontal speed u ...

    Text Solution

    |

  4. Consider a spherical shell of radius R with a total charge +Q uniform...

    Text Solution

    |

  5. Two identical parallel plate capacitors of capacitance C each are conn...

    Text Solution

    |

  6. A certain p-n junction, having a depletion region of width 20 mum, was...

    Text Solution

    |

  7. The half life of a particle of mass 1.6xx10^(-26) kg is 6.9 s and a st...

    Text Solution

    |

  8. A 160 watt light source is radiating light of wavelength 6200 Å unifor...

    Text Solution

    |

  9. The wavelength of the first Balmer line caused by a transition from th...

    Text Solution

    |

  10. The binding energy per nucleon of .(5)B^(10) is 8.0 MeV and that of .(...

    Text Solution

    |

  11. A solid sphere spinning about a horizontal axis with an angular veloci...

    Text Solution

    |

  12. Consider the system shown below A horizontal force F is applied to...

    Text Solution

    |

  13. The maximum value attained by the tension in the string of a swinging ...

    Text Solution

    |

  14. One mole of a monoatomic ideal gas is expanded by a process described ...

    Text Solution

    |

  15. A concave mirror of radius of curvature R has a circular outline of ra...

    Text Solution

    |

  16. The angles of incidence and refraction of a monochromatic ray of light...

    Text Solution

    |

  17. What are the charges stored in the 1 muF and 2 muFcapacitors in the ci...

    Text Solution

    |

  18. A 1.5 kW (kilo-watt) laser beam of wavelength 6400 Å is used to levita...

    Text Solution

    |

  19. When ultraviolet radiation of a certain frequency falls on a potassium...

    Text Solution

    |

  20. The dimensions of Stefan-Boltzmann constant sigma can be written in te...

    Text Solution

    |