Certa in B v itamins are

A gas in container A is in thermal equilibrium with another gas in container B, both contain equal masses of the two gases in the respective containers. Which of the follow- ing can be true (1) P_(A)=P_(B),V_(A)neP_(B)V_(B) (2) P_(A)V_(B)=P_(B)V_(B) (3) P_(A)neP_(B),V_(A)=V_(B) (4) P_(A)/(V_(A))=P_(B)/V_(B)

Good vision depends on adequate intake of carotene rich food. Select the best option from the following statements: (a) Vitamin A derivateves are formed from carotene (b) Photopigments are embedded in the membrane discs of inner segment(c ) Retinal is derivative of v itamin A (d) Retinal is a light absorbing part of all the visual pigments.

The two diodes A and B are biased as shown, then -5V A -9V -3V B -6V

Two strings A and B made of same material are stretched by same tension. The radius of string A is double of the radius of B. A transverse wave travels on A with speed v_A and on B with speed v_B . The ratio v_A/v_B is

Two strings A and B made of same material are stretched by same tension. The radius of string A is double of the radius of B. A transverse wave travels on A with speed v_A and on B with speed v_B . The ratio v_A/v_B is