Answer:
200 nm
Explanation:
We need a constructive interference to see the bright reflection
we know that
where m=1 and
is the wavelength of the gasoline
so 
putting the value of m and
in thickness equation

so the thickness of the film will be 200 nm
Answer:
B. assistant director
Explanation:
Filmmaking can be defined as the art or process of directing and producing a movie for viewing in cinemas or television. The process of making a movie comprises of five (5) distinct phases and these are;
1. Development.
2. Pre-production.
3. Production.
4. Post-production.
5. Distribution.
An assistant director can be defined as an individual who is primarily saddled with the responsibility of reviewing and making script-breakdown, making daily call sheets of the crew, arranging logistics, and tracking the film production schedule. Also, an assistant director normally functions in the pre-production process of a movie and are expected to work closely with the director and other crew members, so as to understand their requirements or needs.
Hence, an assistant director is a specific job that usually includes the important pre-production step of making the script breakdown.
Answer:
Manual typesetting: The form was placed in a press, inked, and an impression made on paper. During typesetting, individual sorts are picked from a type case with the right hand, and set into a composing stick held in the left hand from left to right, and as viewed by the setter upside down.
Computer typesetting: Computerized typesetting, method of typesetting in which characters are generated by computer and transferred to light-sensitive paper or film by means of either pulses from a laser beam or moving rays of light from a stroboscopic source or a cathode-ray tube (CRT).
1. Copyright laws protects original works of authorita1. A