What is a photometer?

A. Instrument for measuring light intensity

B. Instrument for measuring sound frequency

C. Instrument for measuring atmospheric pressure

D. Instrument for measuring electric current

Everyday Science · Introduction to Everyday Science · page 6 of 13

Important Scientific (96) MCQs with Answers

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Important Scientific Instruments MCQs (51–60)

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Past paper MCQs in this chapter · See all past papers

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51.
The tool developed for the study of moon soil samples is ?
Correct Answer: A. Cordless
One-liner
The tool developed for the study of moon soil samples is Cordless.
52.
Mass spectrometer separates different positive isotope ions on the basis of their ?
Correct Answer: C. M/E value
One-liner
A mass spectrometer separates different positive isotope ions on the basis of their M/E value (mass-to-charge ratio).
53.
What is a photometer?
Correct Answer: A. Instrument for measuring light intensity
One-liner
A photometer is an instrument for measuring light intensity.
54.
The lowest temperature in a laboratory thermometer is?
Correct Answer: A. -10°C
One-liner
The lowest temperature in a laboratory thermometer is -10°C.
55.
Find the odd word from the following words: Diameter, Barometer, Thermometer, Lactometer
Correct Answer: D. Diameter
One-liner
Diameter is the odd word because it is a geometric term, while the other three are scientific measuring instruments.
56.
The drying agent used in desiccator is _?
Correct Answer: D. CaCl₂
One-liner
The drying agent used in a desiccator is CaCl₂ (Calcium Chloride).
57.
An instrument that enables us to see distant objects is called?
Correct Answer: B. Telescope
One-liner
A telescope is an optical instrument that uses lenses or mirrors to magnify and view distant objects such as stars, planets, and galaxies.
58.
Distant objects can be seen with the help of ?
Correct Answer: D. Telescope
One-liner
Distant objects can be seen with the help of a telescope.
59.
Lactometer is used to measure which of the following?
Correct Answer: A. Purity of Milk
One-liner
A lactometer is used to measure the purity of milk by determining its specific gravity.
60.
Past Paper MCQ
is used to accelerate beam of charged particles.
Correct Answer: A. Cyclotron
One-liner
A Cyclotron is a device used to accelerate a beam of charged particles using electric and magnetic fields.

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Important Scientific (96) MCQs with Answers

Important Scientific Instruments MCQs (51–60)

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