A. Decreases
B. Increases
C. Remain constant
D. Shows no systematic variation
Related Mcqs:
- Which of the following rays has the least wavelength ?
A. Ultraviolet rays
B. Infrared rays
C. Cosmic rays
D. X-rays - Wavelength of radiation emitted by a body depends on the ________________ of its surface?
A. Temperature
B. Area
C. Nature
D. All ‘A’, ‘B’ & ‘C’ - Particle nature of cathode rays is proved due to the fact that they ________________?
A. Travel in a straight line
B. Get deflected by magnetic electric field
C. Produce fluorescence
D. Heat the exposed material - Wave length of X-rays is about 1 angstrom; however it cannot pass through a sheet of ________________?
A. Paper
B. Cloth
C. Lead
D. Aluminium - X-rays are__________________?
A. Positively charged
B. Negatively charged
C. Neutral
D. Of higher wavelength than visible light - What is the value of included angle of a triangular notch for maximum discharge ?
A. 30°
B. 60°
C. 90°
D. 120° - ________________ property of steel increases by addition of large amount of silicon in it?
A. Mechanical
B. Machining
C. Magnetic
D. Refractory - All of the following alloying elements of steel increases hardness but sacrifice ductility, except________________?
A. Nickel
B. Vanadium
C. Molybdenum
D. Chromium - The ‘transition temperature’ for ductile to brittle behavior of steel increases with increase in the _____________ content in steel?
A. Carbon
B. Manganese
C. Both A nor B
D. Neither A nor B - In case of brasses, with decreasing zinc percentage and increasing copper percentage, its _____________ increases ?
A. Percentage elongation
B. Brinell hardness
C. Tensile strength
D. All A, B & C
