Quiz - Somanex

Created on August 21, 2025 By

Way 17

PHYSICS ⚡

The study of matter, energy, and forces, and how they interact to explain natural phenomena like motion, heat, light, electricity, and the universe.

Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry

1 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

1.

Who proposed the quantum theory?

1. Werner Heisenberg

2. Max Planck

3. Niels Bohr

4. Albert Einstein

2 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

2. Which equation represents Einstein’s mass-energy equivalence?

1. E = mc

2. E = mc²

3. E = mv²

4. E = hf

3 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

3.

The uncertainty principle was formulated by:

1. Schrödinger

2. Dirac

3. Bohr

4. Heisenberg

4 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

4.

Which model introduced the concept of quantized orbits?

1. Bohr model

2. Quantum mechanical model

3. Thomson model

4. Rutherford model

5 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

5.

In nuclear fusion:

1. A heavy nucleus splits into lighter nuclei

2. No energy is released

3. Energy is absorbed

4. Two light nuclei combine to form a heavier nucleus

6 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

6.

Which experiment proved the wave nature of electrons?

1. Double-slit experiment

2. Rutherford gold foil experiment

3. Millikan oil drop experiment

4. Stern-Gerlach experiment

7 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

7.

Which of the following particles is not affected by electric or magnetic fields?

1. Beta particle

2. Alpha particle

3. Neutron

4. Proton

8 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

8.

The rest mass of a photon is:

1. 9.11 × 10⁻³¹ kg

2. 1.67 × 10⁻²⁷ kg

3. Infinite

4. Zero

9 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

9.

The energy of a photon is directly proportional to its:

1. Wavelength

2. Frequency

3. Velocity

4. Mass

10 / 10

Category: Modern Physics:

Studies atomic and nuclear phenomena such as radioactivity, energy, and their applications in medicine and industry.

10.

What is the photoelectric effect?

1. Absorption of electrons from light

2. Emission of electrons when light falls on a metal

3. Emission of photons from a metal

4. Emission of electrons due to heat

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