Which of the following pairs is wrong

Which of the following pairs is wrong

Options

(a) Pressure-Barometer
(b) Relative density-Pyrometer
(c) Temperature-Thermometer
(d) Earth-Seismograph

Correct Answer:

Relative density-Pyrometer

Explanation:

Barometer – Used to measure a atmospheric pressure

Pyrometer – Used to measure temperature of a surface

Thermometer – Used to measure a temperature gradient

Seismograph – Used to measure a earthquake Hydrometer – Used to measure a relative density

admin:

Related Questions

  1. A block slides from an inclination of 45°.If it takes time twice
  2. The de-Broglie wavelength of an electron in the first Bohr orbit is
  3. Two wheels having radii in the ratio 1:3 are connected by a common belt
  4. The electric potential V at any point (x,y,z) all in meters in space is given by
  5. A coil of 40 henry inductance is connected in series with a resistance of 8 ohm