Few MCQs clarification
 

1) Electrical power in watts is obtained by the product of
a) volt and coulomb(Imtiaz Shahid p232)
b) volt and ampere(Dictionary)

2. Waves having shortest wavelength among radio, infrared, ultraviolet and x-rays?
a) Radio waves(Imtiaz Shahid p232)
b) infrared(Dictionary)

Whose answers are correct?

1) P=V.I
Where Volt is the unit of Voltage/P.D
Current's Unit as ampere, Imtiaz Shahid wali book mein maybe mistake hai, coz Coulomb is unit of electric charge.
2. X-rays have the shortest wavelength, (probably) thats why they are used in scans. Order from shortest: X-ray>Ultraviolet>Infra>Radio

[QUOTE=KHANSHAHRUKH;686731]

2. Waves having shortest wavelength among radio, infrared, ultraviolet and x-rays?
a) Radio waves(Imtiaz Shahid p232)
b) infrared(Dictionary)

[/QUOTE]

In electromagnetic spectrum the shortest wavelength posses by gamma rays, then next range is of x-rays, next to is ultravoilet, then infrared region comes, so in question gamma rays are excluded therefore correct answer will be x-rays.