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-Waves must be of equal frequency.
-Waves must be of the same wave length.
joseph rimiru answered the question on October 10, 2017 at 17:44
- On carrying out an experiment it was found that a voltmeter of high resistance was more accurate compared to that of low resistance. State the...(Solved)
On carrying out an experiment it was found that a voltmeter of high resistance was more accurate compared to that of low resistance. State the reason.
Date posted: October 10, 2017. Answers (1)
- What is Nuclear fission?(Solved)
What is Nuclear fission?
Date posted: October 10, 2017. Answers (1)
- Define Nuclide(Solved)
Define Nuclide
Date posted: October 10, 2017. Answers (1)
- Explain two dangers of electromagnetic waves.(Solved)
Explain two dangers of electromagnetic waves.
Date posted: October 10, 2017. Answers (1)
- State four Properties of electromagnetic waves(Solved)
State four Properties of electromagnetic waves
Date posted: October 10, 2017. Answers (1)
- State four applications of X-rays in industries.(Solved)
State four applications of X-rays in industries.
Date posted: October 10, 2017. Answers (1)
- State the dangers of X-rays to human body(Solved)
State the dangers of X-rays to human body.
Date posted: October 10, 2017. Answers (1)
- State types of X-rays(Solved)
State types of X-rays
Date posted: October 10, 2017. Answers (1)
- State the properties of X-rays(Solved)
State the properties of X-rays
Date posted: October 10, 2017. Answers (1)
- State one use of a CRO(Solved)
State one use of a CRO
Date posted: October 10, 2017. Answers (1)
- State four advantages of a C.R.O as a voltmeter.(Solved)
State four advantages of a C.R.O as a voltmeter.
Date posted: October 10, 2017. Answers (1)
- State four properties of cathode rays(Solved)
State four properties of cathode rays
Date posted: October 10, 2017. Answers (1)
- State four sources of mains electricity(Solved)
State four sources of mains electricity
Date posted: October 10, 2017. Answers (1)
- An electrical heater rated 240 v, 2000 w is to be connected to a 240 v mains supply through a fuse of 9.0 A. ...(Solved)
An electrical heater rated 240 v, 2000 w is to be connected to a 240 v mains supply through a fuse of 9.0 A. Will the fuse be suitable? Give a reason.
Date posted: October 9, 2017. Answers (1)
- A n electric bulb rated, 4W is operating on a 240 v mains. Determine the filament’s resistance.(Solved)
A n electric bulb rated, 4W is operating on a 240 v mains. Determine the filament’s resistance.
Date posted: October 9, 2017. Answers (1)
- A capacitor is connected to the distributor in some petrol engines which use spark plugs. What is its function?(Solved)
A capacitor is connected to the distributor in some petrol engines which use spark plugs. What is its function?
Date posted: October 9, 2017. Answers (1)
- What does polarization show in light?(Solved)
What does polarization show in light?
Date posted: October 9, 2017. Answers (1)
- State two conditions under which Ohm’s law is obeyed in a given metal.(Solved)
State two conditions under which Ohm’s law is obeyed in a given metal.
Date posted: October 9, 2017. Answers (1)
- If the p.d. of 0.75 v is applied at the end of a wire of length 1.0 m long with a cross-sectional area of 1.6...(Solved)
If the p.d. of 0.75 v is applied at the end of a wire of length 1.0 m long with a cross-sectional area of 1.6 x 10^-4 m^2 and a current of 1.4 A flow through it. Calculate its resistivity.
Date posted: October 9, 2017. Answers (1)
- Given that the resistance of a wire is 1 ohm. Its resistivity is 5.0 x 10^-7 ohms and its cross- sectional area is 4.0...(Solved)
Given that the resistance of a wire is 1 ohm. Its resistivity is 5.0 x10^-7 ohms and its cross- sectional area is 4.0 x 10 -6 m^2. Find its length.
Date posted: October 9, 2017. Answers (1)