P-1 Metallurgy — Science STD 10 — Question

The resistivity of copper metal depends on only one of the following factors. This factor is:

………..light is deviated the least in the spectrum of white light obtained with a glass prism.

when……..is passed through fresh lime water, it turns milky.

According to Mendeleev's periodic law.properties of elements are periodic function of their ____________.

The flow of energy in an ecosystem is always:

A student obtained a clear image of window grills on the screen. But the teacher told him to get the image of a tree far away, instead of the window. To get a clear image, the lens must be ………..

What are the products obtained on complete combustion of hydrocarbons? ______________

Heat absorbed when 1 g of ice melts at 0 °C to form 1 g of water at the same temperature is………..cal.

The part of brain which takes part in regulating respiration in the human body is: