What type of dynamo is used in a bicycle?

A dynamo

What type of dynamo is used in industry?

What type of mirror is used at home?

(i) What type of drug is used in sleeping pills? (ii) What type of detergents are used in toothpastes? (iii) Why the use of alitame as artificial sweetener is not recommended?

(i) What type of drug is used in sleeping pills? (ii) What type of detergents are used in toothpastes? (iii) Why the use of alitame as artificial sweetener is not recommended?

What type of reflector is used in a box-type solar cooker ?

What types of waves are used in a SONAR ?

What type of toilets are used in aeroplanes?

What is a dynamo?