If a person is feeling dizzy, glucose or fruit juice is given immediately but not a cheese sandwich, which might have more energy. Explain.

A photon and an electron have got same de Brogile wavelength. Which has greater total energy? Explain.

Number of persons in various age groups in a town is given in the following table: Which two age groups have same population ?

You are given two solution A and B having pH 1 and 6. which of these has more hydrogen ion concentration?

A photon and an electron have got same De Brogile wavelength approx 10^(-10) m) . Which has greater knietic energy? Explain.

Read the given passage and answers following questions : Thomas Graham in 1861, during his work on diffusion found that certain substances such as gelatin, albumin, glue,etc. Diffused at very low rate and were called colloids. The colloid particles have the size in the range of 1 to 100nm consisting of dispersed phase and dispersion medium. The dispersed phase or dispersion medium may be solid, liquid or even a gas. Depending upon the nature of dispersion medium or dispersed phase, 8 types of systems are possible except for a gas dispersed in another gas because the gases are completely miscible with each other. The substances which have strong interaction with the dispersion medium are called lyophilic colloids while those which do not pass into colloidal state readily are called lyophobic colloids. Lyophobic sols are much less stable and are irreversible. Answer the following questions : Which type of colloids are more stable?

Two bodies A and B have equal kinetic energies. If mass of A is greater than mass of B, then which body has more linear momentum.