General Science | Physics

Practice General Science | Physics on Bissoy — browse topics below and open any question.

Current Electricity Forces Gravity Heat and Transfer Laws and Principles Magnetism Measuring Instruments Motion Optics Physical Quantities Pressure Units and Dimensional Formula Wave Work Power Energy

Questions

Which of the following is not an electronic device?

ক

A mobile

খ

A computer

গ

A magnifying glass

ঘ

A keyboard

Which of the following cannot travel in vacuum?

ক

Radio waves

খ

Gamma Waves

গ

Infrared Waves

ঘ

Infrasonic waves

Which of the following statements is wrong?

ক

Ground wave propagation can be sustained at frequencies 500 kHz to 1500kHz

খ

Satellite communication is useful for the frequencies above 30 MHz

গ

Space wave propagation takes place through tropospheric space

ঘ

Skywave propagation is useful in the range of 30 to 40 MHz

Which of the following relation is correct?

ক

Design Strength = Ultimate strength / Partial factor of safety

খ

Design Strength = Ultimate strength + Partial factor of safety

গ

Design Strength = Ultimate strength * Partial factor of safety

ঘ

Design Strength = Ultimate strength – Partial factor of safety

What is the value of universal gravitational constant?

ক

6.022 x 1023

খ

6.67 x 10-11 N m2/kg2

গ

1.602 x 10-19 C

ঘ

9.81 m/s2

Which of the following statements are correct?

ক

Equal and Equivalent sets are actually the same

খ

Equivalent sets have a different number of elements

গ

Equal sets have the same elements

ঘ

Two null sets are not equal

Which among the following statements is correct?

ক

NaCl is a paramagnetic substance

খ

Paramagnetic substances behave like an insulator

গ

Cobalt is an Antiferromagnetic substance

ঘ

On heating, ferrimagnetic substanceslose ferrimagnetism

If gravitational constant is decreasing with time, what will remain unchanged in case of a satellite orbiting around the earth?

ক

Time period

খ

Orbiting radius

গ

Areal velocity

ঘ

Angular velocity

If there were no gravity, which of the following will not be there for a fluid?

ক

Viscosity

খ

Surface tension

গ

Pressure

ঘ

Archimedes’ upward thrust

What is the SI unit of mutual inductance?

ক

Ohm

খ

Henry

গ

Volt

ঘ

Siemens

What is the unit of admittance?

ক

ohm

খ

henry

গ

farad

ঘ

ohm-1

Which of these statements is correct?

ক

true and false are numeric values 1 and 0

খ

true and false are numeric values 0 and 1

গ

true is any non zero value and false is 0

ঘ

true and false are non numeric values

What is the SI unit of pressure?

ক

Pascal

খ

Barye

গ

Atm

ঘ

Newton

What is the unit of power?

ক

Joule/sec

খ

Joule/sec2

গ

Joule/sec3

ঘ

Joule/sec4

What is the SI unit of impulse?

ক

N/m

খ

N/m2

গ

N.s

ঘ

Kg.m

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