# Online Preliminary Examination-may,2020 For B.Sc.-VI Semester,Organized By Department Of Physics,Sgmm Hingna,Dist-nagpur

25 Questions | Total Attempts: 76  Settings Create your own Quiz B. Sc. Sem-VI Instructions for examination: The Quiz is based on the R. T. M. Nagpur University Syllabus of B. Sc. (Physics). B. Sc. Final Year (Semester VI) Course-PHYSICS - Paper-I (601) (Relativity, Nuclear physics and Bio Physics) The Quiz consist of total 25 multiple choice questions. Each question carry TWO marks All Questions are Compulsory. No negative marking Has a time limit of 120 minutes Has a pass mark of 50% You can download certificate after finishing the quiz.

• 1.
According to variation of mass with velocity the relativistic mass m is given by (where m0 is rest mass of an object)
• A.
• B.
• C.
• D.
• 2.
A frame of reference has four coordinates, x, y, z, and t is referred to as the_____________
• A.

Space-time reference

• B.

Four-dimensional plane

• C.

Non-inertial frame of reference

• D.

Inertial frame of reference

• 3.
Consider the list of physical properties below. According to special relativity, which ones are dependent on the observer speed?
• A.

Time

• B.

Energy

• C.

Length

• D.

All of these

• 4.
The purpose of the Michelson-Morley experiment was to
• A.

Detect possible motion of the sun relative to the ether.

• B.

Detect possible motion of the Earth relative to the sun.

• C.

Determine the velocity of light.

• D.

Detect possible motion of the Earth relative to the ether.

• 5.
The equation E = mc2 means that
• A.

Mass and energy when combined travel at the speed of light.

• B.

Mass is really a bundle of energy traveling at the speed of light.

• C.

Energy and mass are different forms of the same thing.

• D.

Mass and energy when combined travel at twice the speed of light.

• 6.
In Nuclear fission reaction?
• A.

A neutron is split into a neutron and proton.

• B.

Two light nuclei are combined into a heavier one.

• C.

A heavy nucleus is fragmented into lighter ones.

• D.

A proton is split into three quarks.

• 7.
Which of the following particle is not accelerated by cyclotron?
• A.

Electron

• B.

Alpha particle

• C.

Proton

• D.

Neutron

• 8.
Cyclotron was invented by
• A.

Sir Ernest Lawrence

• B.

Sir Stephen Poplawski

• C.

Sir Arthur Wynne

• D.

Sir John Biggins

• 9.
Ionization of gas is produced when nuclear radiations pass through it'. This is the principle of which of the following detectors?
• A.

Liqud crystal counter

• B.

Flow counter

• C.

Geiger Muller counter

• D.

None of the above

• 10.
Mass defect and binding energy are equivalent
• A.

True

• B.

False

• C.

May be

• D.

None of the above

• 11.
Gamma-ray photons have:
• A.

No mass and an electric charge of +1

• B.

No mass and an electric charge of +2

• C.

No mass and an electric charge of -1

• D.

No mass and no electric charge

• 12.
A helium nucleus is also known as
• A.

Beta particle.

• B.

Gamma particle

• C.

Alpha particle.

• D.

None of the above

• 13.
What type of Reaction takes place in sun?
• A.

Double beta decay

• B.

Spontaneous fission

• C.

Nuclear fission

• D.

Nuclear fusion

• 14.
In Nuclear fusion reaction –
• A.

Two light nuclei of low mass to produce a light nucleus

• B.

Two heavy nuclei of low mass to produce a light nucleus

• C.

Two light nuclei of low mass to produce a heavy nucleus

• D.

None of the above

• 15.
In Nuclear reactor which of the following element used as Fuel
• A.

• B.

Plutonium

• C.

Uranium

• D.

None of the mentioned

• 16.
Biophysics is the branch of science which deals with the study of
• A.

Biological principles involved in Physics.

• B.

Chemical principles involved in biology.

• C.

Physical principles involved in biology.

• D.

None of the above

• 17.
Which one of the following radiations are more penetrating (more Energetic)
• A.

• B.

• C.

• D.

All of the above

• 18.
• A.

Henri Becquerel

• B.

Louis Pasteur

• C.

Pierre Curie

• D.

Antoine Lavoisier

• 19.
The particles which are also emitted during Beta decay are
• A.

Neutron

• B.

Proton

• C.

Electrons

• D.

Neutrinos

• 20.
The short-lived isotopes of radioactive element emit more energetic alpha particles than long-lived ones. This is the statement of which law
• A.

Neutrino theory

• B.

Gamow’s theory

• C.

Geiger Nuttal law

• D.

None of the above

• 21.
What is the principle of ultrasonography?
• A.

Medical imaging technique that uses high frequency sound waves and their echoes

• B.

Medical imaging technique that uses low frequency sound waves and their echoes

• C.

Medical imaging technique that uses medium frequency sound waves and their echoes

• D.

Medical imaging technique that uses ultra-low frequency sound waves and their echoes

• 22.
The study and analysis of signals arising due to Electrical activity of brain is called as
• A.

Electroencephalogram or EEG

• B.

Electrocardiogram or ECG

• C.

Electro-orthogram or EOG

• D.

Electro-kidneygram or EKG

• 23.
In normal ECG, P wave signifies
• A.

Arterial deionization

• B.

Arterial depolarization

• C.

Muscular depolarization

• D.

Muscular deionization

• 24.
The main function of _________system is to supply pure blood to the body parts and collect impure blood from the body
• A.

Cardiovascular

• B.

Cardiographic

• C.

Carcinogenetic

• D.

Cardionuclear

• 25.
Biopotential at cellular level is due to
• A.

Depolarization and repolarization of the cell

• B.

Depolarization and repolarization of the Muscles

• C.

Dissociation and association of the Muscles

• D.

Dissociation and association of the cell

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