Dual Nature Of Radiation And Matter Mock Tests

31 questions available

Dual Nature Of Radiation And Matter Mock Test 1

Questions: 30

Dual Nature Of Radiation And Matter Mock Test 2

Questions: 1

नमूना प्रश्न

Class 12 Physics

The maximum kinetic energy of photoelectrons emitted from a surface is 5 eV when light of wavelength 200 nm is used. The work function of the surface is:

A 1.2 eV

B 3.2 eV

C 5.0 eV

D 6.2 eV

Class 12 Physics

An electron, a proton, and an alpha particle have the same kinetic energy. Which of them has the shortest de Broglie wavelength?

A Electron

B Proton

C Alpha particle

D All have the same wavelength

Class 12 Physics

Monochromatic light of wavelength 500 nm is incident on a metal surface with work function 2.0 eV. The maximum kinetic energy of the emitted photoelectrons is: (h = 6.626 × 10⁻³⁴ J·s, c = 3 × 10⁸ m/s, 1 eV = 1.6 × 10⁻¹⁹ J)

A 0.48 eV

B 0.98 eV

C 1.52 eV

D 2.48 eV

Class 12 Physics

The work function of sodium is 2.3 eV. The threshold wavelength for sodium is approximately (h = 6.626 × 10⁻³⁴ J·s, c = 3 × 10⁸ m/s, e = 1.6 × 10⁻¹⁹ C):

A 5380 Å

B 2700 Å

C 10000 Å

D 1500 Å

Class 12 Physics

Monochromatic light of wavelength 500 nm is incident on a metal surface with work function 2.0 eV. The stopping potential is approximately:

A 0.48 V

B 2.48 V

C 0.00 V

D 4.80 V

NEET Physics

The dimensional formula of Planck's constant is:

A [ML²T⁻¹]

B [ML²T⁻²]

C [MLT⁻¹]

D [ML²T⁻³]

NEET Physics

The de Broglie wavelength of an electron accelerated through potential V is proportional to:

A 1/√V

B 1/V

C V

D √V

NEET Physics

The energy required to break one bond in DNA is 10⁻¹⁹ J. This is approximately equal to:

A 1 eV

B 0.1 eV

C 10 eV

D 0.01 eV

Dual Nature Of Radiation And Matter Mock Tests

Dual Nature Of Radiation And Matter Mock Test 1

Dual Nature Of Radiation And Matter Mock Test 2

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