Scientific Instruments

The final image produced by a simple microscope is ___?

1. Inverted and virtual
2. Real and inverted
3. Erect and inverted
4. Virtual and erect

Which instrument detects light?

1. Photodiode
2. Photodiode
3. Luxmeter
4. Thermometer

Which instrument is used for analyzing polarized light?

1. Spectrometer
2. Polarizer
3. Polarimeter
4. Photodiode

Which instrument studies the spectrum of luminous bodies?

1. Spectrometer
2. Luxmeter
3. Photoelectric cell
4. Radiometer

Which instrument converts low voltage to high voltage and vice versa?

1. Transformer
2. Pyrometer
3. Thermometer
4. Amplifier

What is used to observe the retina?

1. Spectrometer
2. Microscope
3. Ophthalmoscope
4. Camera

What is the principle of sonar?

1. Refraction of sound
2. Absorption of sound
3. Reflection or echo of sound
4. Transmission of sound