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Class 9th Science Chapter 9 mcq. We covered all the Class 9th Science Chapter 9 mcq in this post for free so that you can practice well for the exam.
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Class 9th Science Chapter 9 Objective mcq for Students
What instrument is used to measure blood pressure?
(A) Tachometer
(B) Sphygmomanometer
(C) Actiometer
(D) Barometer
Option b – Sphygmomanometer
Which device is suitable for measuring temperatures higher than 1500°C?
(A) Clinical thermometer
(B) Thermoelectric couple thermometer
(C) Platinum resistance thermometer
(D) Pyrometer
Option d – Pyrometer
The instrument used to measure Light intensity is called
(A) Anemometer
(B) Calorimeter
(C) Luxmeter
(D) Altimeter
Option c – Luxmeter
Radar is primarily used for
(A) Detecting objects using Light waves
(B) Locating objects by reflecting sound waves
(C) Identifying the presence and position of objects using radio waves
(D) Monitoring rain-bearing clouds
Option c – Identifying the presence and position of objects using radio waves
Which quantity is measured using the Richter scale?
(A) Speed of a glacier
(B) Population growth
(C) Strength of an Earthquake
(D) Temperature within the Earth
Option c – Strength of an Earthquake
The Richter scale measures
(A) Velocity of sound
(B) Intensity of Light
(C) Amplitude of seismic waves
(D) Loudness of sound
Option c – Amplitude of seismic waves
Earthquake strength is measured on the
(A) Richter scale
(B) Decibel scale
(C) pH scale
(D) Celsius scale
Option a – Richter scale
Which of the following pairs is incorrectly matched?
(A) Celsius: Temperature
(B) Kilowatt hour: Electricity
(C) Rh factor: Blood
(D) Richter scale: Humidity
Option d – Richter scale: Humidity
Which of the following instruments is used to record seismic activity?
(A) Crescograph
(B) Seismograph
(C) Geiger counter
(D) Rain gauge
Option b – Seismograph
Which of the following pairs is correctly matched?
(A) Thermoresistor: Electronic thermometer
(B) Capacitor: Thermometer
(C) Bipolar junction transistor: Rectifier
(D) Junction diode: Amplifier
Option a – Thermoresistor: Electronic thermometer
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