Subject :NSO Class : Class 5
Which object does not depend on changing one form of energy to a different form?
A 
B 
C 
D None of these
Ans 1:
Class : Class 5
And:c
Ans 2:
Class : Class 6
D
Ans 3:
Class : Class 8
Ans 4:
Class : Class 5
option c is confusing. which appliance it is?
Ans 5:
Class : Class 9
C is stethoscope
Ans 6:
Class : Class 3
option c was not clear...it was confusing...
Ans 7:
Class : Class 5
C IS NOT STETHOSCOPE IT IS A CD WITH A CABLE . A CD HAS CHEMICAL ENERGY [BATTERY] AND IT DOESN'T CONVERT IT INTO ANY OTHER FORM HENCE C IS ALSO CORRECT
Ans 8:
Class : Class 7
option"C" isn't clear enough to identify it
Ans 9:
Class : Class 8
A is not correct as it converts wind energy into electrical energy
B is not correct as it converts electrical energy int heat energy.
and I am not sure what is the c one
Ans 10:
Class : Class 7
c is walkman