Measurements & Scientific Instruments

Correct Answer: B

The spray bottles used as window or household cleaner or perfume spray works on: Bernoulli’s Principle. The result follows from how light is reflected, refracted, focused, or distributed across the electromagnetic spectrum.

Correct Answer: A

The Temperature of the surface of Sun is 5,778 Kelvin. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.

Correct Answer: C

The unit of home electricity energy consumption is Killowatt hour. The effect results from the movement of charge or the interaction of electric and magnetic fields.

Correct Answer: B

The unit of torque in International system of unit is Newton- Meter. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: B

Unit of force in (SI) is Newton. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: B

Unit of specific gravity is No unit. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: C

Unit of surface tension in cgs system is Dyn/cm. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: C

Units of electricity consumed by 2500 watt air-conditioner in one hour are 2.5 units. The effect results from the movement of charge or the interaction of electric and magnetic fields.

Correct Answer: A

The three basic units of measurement for the metric system are Metre, litre and gramme. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: B

The smallest unit of heredity is Gene. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: C

Unit of conductivity is mho. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: D

Unit of Pressure is All of these. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: C

Wattmeter is instrument is used to measure the power of electric circuit. The effect results from the movement of charge or the interaction of electric and magnetic fields.

Correct Answer: A

Charles’ Law is law states that the volume of a given amount of gas held at constant pressure is directly proportional to the Kelvin temperature. Its composition and chemical or physical behavior give it the stated classification or property.

Correct Answer: A

Meter cube is the SI unit of volume. This value follows from the standard definition or accepted conversion used for the quantity.

Correct Answer: D

Adiabatic demagnetisation is principleis used to produce ‘low-temperatures’. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: D

A foot-candle is not a unit of distance. It measures illuminance, whereas the parsec, astronomical unit, and light-year measure distance.

Correct Answer: C

Copernicus is scientist is known as modern father of Astronomy. The term is defined by the subject, process, or characteristic described in the question.

Correct Answer: C

Issac Newton came up with three laws of motion. The stated result follows from the relevant physical relationship between force, matter, motion, or energy.

Correct Answer: B

Nicolaus Copernicus discovered that the earth was not the center of the universe. Astronomical observations and measurements establish this relationship among the relevant celestial bodies.