Question Discussion & Solution

According to the given information,

Jaya ran faster than Sheetal

Jaya > Sheetal

Veena ran faster than Neha

Veena > Neha

Deepak ran faster than Neha but not as fast as Sheetal

Sheetal > Deepak > Neha

Sheetal ran slower than Veena but Veena is not the fastest.

Veena > Sheetal

Jaya > Veena > Sheetal > Deepak > Neha

Deepak came second last in the race.

Explanation:

Hygrometer:

• A hygrometer is an instrument used to measure the amount of water vapour in the air (humidity), in soil, or in confined spaces.
• Humidity measurement instruments usually rely on measurements of some other quantities such as -
  • Temperature, pressure, mass, a mechanical or electrical change in a substance as moisture is absorbed.

Additional Information

Hydrometer:

• A hydrometer is an instrument used for measuring the relative density of liquids based on the concept of buoyancy.
• They are typically calibrated and graduated with one or more scales such as specific gravity.
• Hydrometers can be divided into two general classes -
  • liquids heavier than water 
  • liquids lighter than water

A photometer is used to measure the intensity of light produced by an unknown source in terms of a standard source.

• It is an instrument that measures the strength of electromagnetic radiation in the range from ultraviolet to infrared and including the visible spectrum.
• Most photometers convert light into an electric current using a photoresistor, photodiode, or photomultiplier.
• Photometers are used to determine the correct exposure in photography.
• Photometers measure Illuminance, Irradiance, Light absorption, Scattering of light, Reflection of light, Fluorescence, Phosphorescence and Luminescence.

The correct answer is Tamil Nadu.

Key Points

•  Bharatnatyam:
  • ​Bharatnatyam Dance is considered to be over 2000 years old.
  • Several texts beginning with Bharata Muni's Natya Shastra (200 B.C.E to 200 C.E.) provide information on this dance form.
  • Bharatnatyam Dance is known to be Ekaharya, where one dancer takes on many roles in a single performance.

Additional Information

•  8 Classical Dances of India:

Elements of diagram are moving in clockwise direction and 1 dot is added in each step.

The complete diagram is as follows,

Given: Girl, Boy, Human

All human are boy and girl.