Problem In Physics
Physics is the subject consisting amazing facts of laws of nature with mathematical description which is experimentally proved or sometimes predicted.
If an electric iron is marked 2kWand 220 v, what would be the resistance of iron element?
A)3125ohm
62.5ohm
C)125ohm
D)93.75ohm
If the earth's radius reduced to half of its size without changing it's mass , how long be a single day ?
A) 24 hours
B)12hours
C)6hours
D)8hours
16/05/2019
Unit conversion......
1m=100cm
1kg=1000gm
1N=10^5dyne
1J=10^7erg
Solve
If ccose@-sin@=m and sec@-cos@=n. Prove that
(m^2n)^2/3+(mn^2)^2/3=1
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