Which radioactive ray is an electro magnetic radiation?

What are radioactive rays ?

Which one of the following electromagnetic radiations has least frequency: UV radiations, X-rays, Microwaves

Which property of electromagnetic radiation is useful in explaining the phenomena involving energy transfer?

What is radioactive susbtance?

Radioactivity is due to

From which part of the atoms are radioactive rays emitted? Which of the radioactive rays has the highest penetrating power and which has the highest ionising power?

The wavelength of an electromagnetic radiation is lamda . What is the energy of a photon of this radiation?

Name the phenomenon which shows the quantum nature of electromagnetic radiation.

Mention two properties of each of the radioactive rays emitted from a radioactive substance.

In an experiment, the carbon dioxide available to a C_(3) plant was labelled with a radioactive isotope and the amount of radioactivity in the chloroplast was measured.As photosynthesis proceeded, in which of the following molecules did the radioactivity first appear ?