- Copper
- Aluminium
- Steel reinforced copper
- Steel reinforced aluminium
Answer: Option 3 The emission spectrum of a chemical element or chemical compound is the spectrum of frequencies of electromagnetic radiation emitted due to an atom or molecule making a...
1 Answers 1 viewsAnswer: Option 3 Let'
1 Answers 1 viewsAnswer: Option 5 The phrase 'not much has been done in this field' indicates that wind energy is a comparatively newly emerging field. So, I follows. The expression 'there is...
1 Answers 1 viewsAnswer: Option 2 Photovoltaic cell converts light energy to electrical energy.
1 Answers 1 viewsAnswer: Option 1 Clearly, harnessing solar energy will be helpful as it is an inexhaustible resource unlike other resources. So, argument I holds. But argument II is vague as solar...
1 Answers 1 viewsAnswer: Option 3 The device which converts sound energy into electrical energy is called microphone.
1 Answers 1 viewsAnswer: Option 1 Let'
1 Answers 2 viewsAnswer: Option 4 Let'
1 Answers 1 viewsAnswer: Option 1 Let'
1 Answers 1 views