On planet Earth there is no centrifugal force at the

The wavelength of X-rays is of the order of

What is the mass of one litre of cottonseed oil of density 926 kg/m³?

 Consider the following statements regarding diamond

1. It is an allotrope of silicon
2. It is a bad conductor of heat and electricity
3. It is the hardest substance
4. It burns to produce carbon dioxide

Which of the statements given above are correct?

When applied to the affected area, which one of the following will relieve the pain due to ant-bite or bee-sting?

Oxygen and ozone are