Question
Which is not true about
microwave?ÂSolution
1. Electromagnetic spectrum: a. Radio waves: >30cm b. Microwaves: 1mm-30cm c. Infrared: 700nm-1mm 2. Food applications: a. 2.45 GHz (12.24cm wavelength) b. Dielectric heating of water molecules 3. FSSAI approved for: a. Thawing b. Cooking c. Sterilization
If tan A = 1 and tan B = √ 3, what is the value of cos A . cos B - sin A . sin B?
If (sin 3A sec 6A = 1) , then what will be the value of cos 6A?
If secθ + tanθ = 3+√10, then the value of sinθ+cosθ is
If tan A =
, find the va...The minimum value of 9 cos2 θ + 36 sec2 θ isÂ
Find the value of the following:sin(36° + A) × cos(54° – A) + cos(36° + A) × sin(54°–A)
- If 2 sin x = √3, then the value of x:
If tan θ = 8/3 , then the value of (3Sinθ+2 Cosθ )/(3 Sinθ-2Cosθ) is
From a point "A" on the ground, the angle of elevation to the top of a tower measuring 12 meters in height is 30°. Determine the horizontal distance be...
