NEET (National Eligibility cum Medical Entrance Test) Physics: Questions 2076 - 2078 of 2142

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 2142 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 550.00 or

Question number: 2076

» Wave Optics » Young's Double Slit Experiment

Appeared in Year: 2016

MCQ▾

Question

A linear aperture whose width is Equation is placed immediately in front of a lens of focal length Equation . The aperture is illuminated normally by a parallel beam of wavelength Equation . The distance of the first dark band of the diffraction pattern from the centre of the screen is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2077

» Dual Nature of Matter and Radiation » Particle Nature of Light

Appeared in Year: 2016

MCQ▾

Question

Photons with energy Equation are incident on a cathode C in a photoelectric cell. The maximum energy of emitted photoelectrons is Equation . When photons of energy Equation are incident on C, no photoelectrons will reach the anode A, if the stopping potential of A relative to C is:

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2078

» Atoms and Nuclei » Hydrogen Spectrum

Appeared in Year: 2016

MCQ▾

Question

If an electron in a hydrogen atom jumps from the 3rd orbit to the 2nd orbit, it emits a photon of wavelength Equation . When it jumps from the 4th orbit to the 3rd orbit, the corresponding wavelength of the photon will be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In