A bird of mass $0.1kg$ rising vertically with an acceleration of $0.2m{s}^{-2}$.The muscular force exerted by it is $(g=9.8m{s}^{-2})$

a. $1N$ b. $9.8kg-wt$

c. $\frac{1}{9.8}kg-wt$ d. $980N$

Q.

Which of the following statements about cyclic photophosphorylation are correct?

(a) Only PS – I functions

(b) NADPH is formed

(c) Occurs when the light of wavelength beyond 680 nm is available for excitation

(d) Oxygen is evolved

Q. If $a,b,c,d$ are distinct positive numbers which are in A.P. with positive common difference, then which of the following is/are correct?

Q.

Which of the following expression is/are correct?

Q.

If the points A(1,2), B(0,0), and C(a,b) are collinear, then which of the following is correct?

Q.

If the points A(1,2), B(0,0), and C(a,b) are collinear, then which of the following is correct?