Question

Q.1 (A). Fill in the blanks:-
1. The magnification produced by a ... mirror is always positive.
2. The pitch of a sound depends upon
of the wave.
3.
is the main element in cellular DNA and RNA.
is used in the manufacturing of soaps and detergents.
5. The element hydrogen is present in ... compound.
4.​

Answer 1

Explanation:

1.plane

2.intensity

3.nucleotides

5.water(h2o)