A particle is moving in a circular path of radius r. The displacement after half a circle would be
Anonymous Quiz
23%
Zero
39%
πr
33%
2r
5%
0
👍1
Sound of frequency below …………… is called infrasonic sound.
Anonymous Quiz
76%
20hz
8%
31hz
10%
40hz
6%
14hz
Greater the amplitude of vibration of source the greater is …………… of sound.
Anonymous Quiz
25%
Speaker
62%
Loudnees
12%
Sound
1%
None
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
Anonymous Quiz
23%
13
50%
10
21%
14
6%
16
❤1
How many electrons are present in M-shell of an element with atomic number 20?
Anonymous Quiz
8%
5
56%
8
19%
12
16%
18
👍1
The ion of an element has 3 positive charges. Mass number of the atom is 27 and the number of neutrons is 14. What is the number of electrons in the ion?
Anonymous Quiz
26%
13
41%
10
27%
14
6%
16
👍1
3 aur 5 marks waale question mein kitne point likna zarrori hai | Class 10 Board Exam #shorts
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