Question

apne gaon mein kuo ki sankhya badana
aur aur unke hone wale a pareshani iske bare mein adhikari ko Patra likhiye​

Answer 1

Answer:

Explain why the flash of lightning is seen first but the sound of thunder is heard a little later (though lightning and thunder take place in the sky at the same time and the same distance from us).

Solution:

The flash of lightning is seen first but the sound of thunder is heard a little later (though lightning and thunder take place in the sky at the same time and the same distance from us) because the velocity of light in air 3× 108 m/s while the velocity of sound in air is 343m/s.

58. Name the object (or part) which vibrates to produce sound in the following musical instruments :

(a) Sitar

(b) Dholak

(c) Flute

(d)Cymbals

(e) Veena

(f) Tabla

Solution:

(a) Strings

Answer 2

Answer:

FG gyg yfc cvf vcv bf oku aws ge zq ?p !knnju