Higher Study | Physics

Waves Moving Charges and Magnetism Thermodynamics Electric Fields and Gauss' Law Electromagnetic Induction and Inductance Gravitation Semiconductors Dual Nature: Photon and Matter Waves Magnetism and Maxwell's Equations Thermal Properties of Matter Atoms Work Power and Energy Rotational Motion Electromagnetic Oscillations and Alternating Current Fluids Electromagnetic Waves Oscillations Center of Mass and Linear Momentum Motion in a Straight Line Motion in Two and Three Dimensions Laws of Motion Electric Charges and Coulomb's Law Optics The Kinetic Theory of Gases Mechanical Properties of Solids Electric Potential Vectors Capacitance Nuclear Physics Equilibrium and Elasticity Relativity Units Current

Choose the correct statement.

ক

Many people have computer phobia, that generates more unemployment.

খ

Many people have computer phobia, which generates more unemployment.

গ

Many people have computer phobia, what generates more unemployment.

ঘ

Many people have computer phobia, and generates more unemployment.

Which of the following is the best conductor of Electricity?

ক

Pond water

খ

rain water

গ

river water

ঘ

sea water

Choose the correct statement-

ক

Bonsai is simply a pot plant.

খ

Bonsai is considered as an art form.

গ

Bonsai is considered as a form against nature.

ঘ

None of above there.

Which of the following is a vector quantity?

ক

Density

খ

Mass

গ

Volume

ঘ

Acceleration

What is the function of a transformer?

ক

Transformer is used to step down or up the AC voltages and currents

খ

Transformer is used to step down or up the DC voltages and currents

গ

Transformer converts DC to AC voltages

ঘ

Transformer converts AC to DC voltages

What is the unit of specific gravity?

ক

Dimensionless

খ

m/s2

গ

N/m3

Which of the following is a state function?

ক

Entropy

খ

Heat

গ

Work

Which of the following is not a conservative force?

ক

Gravitational force

খ

Spring force

গ

Friction force

ঘ

Magnetic force

Which of the following is an extensive variable?

ক

Volume

খ

Pressure

গ

Boiling point

ঘ

Color

Which among the following is an incorrect statement?

ক

Chlamydomanas is an example of unicellular algae

খ

Chlamydomanas have flagella to promote their movement

গ

Ulothrea is a unicellular autotrophic algal

ঘ

Spirogyra attains its name because of spiral like arrangement of chloroplasts

Which of the following statement is incorrect?

ক

Pteridophytes follow cryptogamae i.e. reproduce spores

খ

The main plant body in Pteridophytes is Sporophyte

গ

Pteridophytes grow in dry and cold places like mountains

ঘ

Pteridophytes have specialized vascular tissues

Which of the following is not a vector quantity?

ক

Speed

খ

Density

গ

Force

ঘ

Velocity

What happens if the reverberation time is too large?

ক

The sound becomes inaudible

খ

Echoes are produced

গ

Frequency becomes high

ঘ

The sound becomes infrasonic

In which medium sound travels faster?

ক

Solid

খ

Liquid

গ

Gas

ঘ

Water vapour

What is the time lag between the incidence of photons and the ejection of photoelectrons?

ক

Greater than 10-5 s

খ

Between 10-5 s and 10-9 s

গ

Less than 10-9 s

ঘ

1 second