Question : Which apparatus is used to measure the intensity of light?

Option 1: Lux Meter

Option 2: Calorimeter

Option 3: Anemometer

Option 4: Altimeter

Question : Which of the following is used to chemically test starch?

Option 1: Chlorine solution

Option 2: lodine solution

Option 3: Sulphur solution

Option 4: Bromine solution

Question : Which of the following devices is used to measure humidity?

Option 1: Hydrometer

Option 2: Hygrometer

Option 3: Psychrometer

Option 4: Anemometer

Question : The pH of a neutral solution is ______.

Option 1: 7

Option 2: 0

Option 3: 8

Option 4: 4

Question : What is the name of the device used to convert alternating current into direct current?

Option 1: Ammeter

Option 2: Galvanometer

Option 3: Rectifier

Option 4: Transformer