Search & Filtering
A monochromatic light of wavelength 750 nm falls on a single slit and produces its third diffraction minimum at an angle of 35° relative to the incident direction of the light. Compute the width of the slit. Also compute the angle at which the second maxima are produced.
A monochromatic light of wavelength 744 nm falls on a single slit and produces its third diffraction minimum at an angle of 35° relative to the incident direction of the light. Compute the width of the slit. Also compute the angle at which the second maxima are produced.
Why does a body float in water
A flywheel has an angular momentum of 40 kg m^2 s^-1. The radius of gyration of the flywheel is 0.65m and its rotating at 250 RPM.
Whats the angular velocity in rad/s?
Whats its mass?
At weight should a satellite is required to orbit the Earth in a period of 24 hours?
(Orbital period of the moon :27.3 days,
Radius of orbit of the Moon:3.83 × 10^8m)
As you walk to your school, you have done 2.00 x 105 J of work and lost
3.00 x 105 J of internal energy.
(a) How much of the internal energy was converted into heat?
(b) Is it added or removed? Explain.
An electric flux of magnitude 180 passes through a flat horizontal surface that has an area 0.5 m2. If the electric field was uniform, what is the magnitude of the field if it passes the area at angle of 30° ?
Using your own words, describe how Heinrich Hertz produced radio pulses or waves.
Aside from mobile phones that use radio waves to carry signals, list down atleast five other uses of radio waves to communicate and deliver messages.
1. Why do you think a message is not delivered?
2. Whare the factors that may have caused delays in delivering message
3. What do you think is the role of telecommunications compsny in the delivery of information?
4. Aside from mobile phones that use radio waves to carry signals, list down atleast five other uses of radio waves to communicate and deliver messages.
