Physics
Of the following properties of a wave, the one that is independent of the other is its

velocity
amplitude
wavelength
frequency

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Physics
In heating frozen foods in sealed pouches in a microwaves, why do you first poke holes in the pouch?

To prevent the steam pressure from bursting open the pouch
To allow the heat to get into the food through the hole
To allow the aroma of the food to come out through the holes
To allow the microwaves to get into the food through the holes

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Physics
Which one of the following is the correct sequence of passage of light in a compound microscope?

Condenser -Objective lens -Body tube -Eyepiece
Objective lens -Condenser -Body tube -Eye piece
Condenser -Objective lens -Eye -piece -Body tube
Eyepiece -Objective lens -Body tube -Mirror

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