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Subject: Science, asked on 23/1/21

We cannot hear the echo prodused in classroom

Subject: Science, asked on 14/1/21

EMPOWERMENT OF WOMEN AND OTHER WEAKER SECTION
Notes

Subject: Science, asked on 28/12/20

?An object of height 8 cm is kept at a distance of 35 cm in front of a concave mirror. The focal length of the mirror is 25 cm. At what distance from the mirror should a screen be kept so as to get a clear image? What will be the size and nature of the image?

Subject: Science, asked on 10/11/20

What are echoes and how are they produced ?

Subject: Science, asked on 19/10/20

Anyone know what Bermuda Trangle is?

Subject: Science, asked on 7/10/20

Please answer batao koi....

what is an echo?? what factors are important to get a distinct Echo..??

Subject: Science, asked on 1/10/20

What is tuning fork ??

Subject: Science, asked on 28/9/20

Speed of light in air?

Subject: Science, asked on 26/9/20

What is rarefaction...? Ans this fast..

Subject: Science, asked on 24/5/20

What is the full form of covid 19

Subject: Science, asked on 20/5/20

what is loudness a jet aeroplane takind off

Subject: Science, asked on 1/5/20

What is meant by quality of sound??

Subject: Science, asked on 23/2/20

Ultrasonic waves are transmitted downwards into the sea with the help of a SONAR. The reflected sound is received after 4 s. What is the depth of sea at that place?

Subject: Science, asked on 24/11/19

how to solve formula

Subject: Science, asked on 8/11/19

What is audibility

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