Scientific Instruments

Which instrument is used to measure the amount of rainfall?
A) Hydrometer
B) Rain gauge
C) Anemometer
D) Barometer
Answer: B) Rain gauge

Which instrument is used to measure the intensity of earthquakes?
A) Richter scale
B) Seismograph
C) Barometer
D) Anemometer
Answer: B) Seismograph

Which instrument is used to measure the intensity of light?
A) Spectrometer
B) Photometer
C) Refractometer
D) Thermometer
Answer: B) Photometer

Which instrument is used to measure the distance between two points?
A) Odometer
B) Pedometer
C) Micrometer
D) Ruler
Answer: C) Micrometer

Which instrument is used to measure the acidity or alkalinity of a solution?
A) Hygrometer
B) Spectrophotometer
C) pH meter
D) Refractometer
Answer: C) pH meter

Which instrument is used to measure the humidity in the air?
A) Thermometer
B) Hygrometer
C) Barometer
D) Anemometer
Answer: B) Hygrometer

Which instrument is used to measure the electrical potential difference between two points?
A) Voltmeter
B) Ammeter
C) Ohmmeter
D) Wattmeter
Answer: A) Voltmeter

Which instrument is used to measure the frequency of sound waves?
A) Oscilloscope
B) Spectrometer
C) Sonar
D) Audiometer
Answer: D) Audiometer

Which instrument is used to measure the magnetic field around a conductor?
A) Ammeter
B) Voltmeter
C) Ohmmeter
D) Gaussmeter
Answer: D) Gaussmeter

Which instrument is used to measure the speed of an object in motion?
A) Chronometer
B) Tachometer
C) Chronograph
D) Stopwatch
Answer: B) Tachometer

Which instrument is used to measure the angle of inclination or slope of a surface?
A) Protractor
B) Theodolite
C) Clinometer
D) Sextant
Answer: C) Clinometer

Which instrument is used to measure the density of a liquid or gas?
A) Hydrometer
B) Refractometer
C) Spectrophotometer
D) Thermometer
Answer: A) Hydrometer

Which instrument is used to measure the velocity and direction of wind?
A) Hygrometer
B) Anemometer
C) Thermometer
D) Barometer
Answer: B) Anemometer

Which instrument is used to measure the depth of a body of water?
A) Barometer
B) Altimeter
C) Bathometer
D) Thermometer
Answer: C) Bathometer

Which instrument is used to measure the force or weight of an object?
A) Force meter
B) Weight scale
C) Weighing balance
D) Spring balance
Answer: D) Spring balance

Which instrument is used to measure the pH level of soil?
A) Soil pH meter
B) Soil thermometer
C) Soil moisture meter
D) Soil compaction meter
Answer: A) Soil pH meter

Which instrument is used to measure the blood pressure of a patient?
A) ECG machine
B) Sphygmomanometer
C) Stethoscope
D) Pulse oximeter
Answer: B) Sphygmomanometer

Which instrument is used to measure the radiation levels in a particular area?
A) Geiger counter
B) Spectrophotometer
C) Radiation dosimeter
D) Spectroscope
Answer: A) Geiger counter

Which instrument is used to measure the electric current flowing through a circuit?
A) Ammeter
B) Voltmeter
C) Ohmmeter
D) Wattmeter
Answer: A) Ammeter