Variation of radiant energy emitted by sun, filament of tungsten lamp and welding arc as a function of its wavelength is shown in figure. Which of the following option is the correct match?
A
1-buld, 2 `rarr` welding arc, 3 `rarr` sun
B
2-buld, 3 `rarr` welding arc, 1 `rarr` sun
C
3-bulb,1 `rarr` welding arc, 2 `rarr` sun
D
2-bulb, 1 `rarr` welding arc, 3 `rarr` sun
Text Solution
Verified by Experts
The correct Answer is:
A
According to Wien's displacement law `lambda_(m)T = constant :. T prop (1)/(lambda_(max))` form graph `lambda_(max(1)) gt lambda_(max(2)) gt lambda_(max(3))` `:. T_(1) lt T_(2) lt T_(3)` the material having lower temperature has the graph having lower peak.
Variation of radiant energy emitted by Sun, filament of Tungsten Lamp and welding arc as a function of its wavelength shown in Identify the temperatures of Sun. filament lamp and welding are .
If graph of y=f(x) is as shown in figure,then which of the following options is/are correct?
Graph of spectral radiancy (E_(lambda)) VS Wavelength (lambda) is shown in figure . Which of the following combination is correct .
Potential energy U(r ) varies with position r as shown in figure Which of the following conclusions are correct?
A uniform rod of length l is applied upon by two forces at its either end as shown. Surface is smooth. Which of the following option is correct ?
The intensity of X-rays firom a coollidge tube is plotted against wavelength lambda as shown in the figure-3.12. Which ofthe following statements is/are correct:
The variation of the instantaneous current (I) and the instantaneous e.m.f (E) in a circuit is as shown in figure. Which of the following statement is correct?
Three graphs marked as 1,2,3 representing the variation of maximum emissive power and wavelength of radiation of the sun, a welding arc and a tungsten filament. Which of the following combination is correct
Knowledge Check
A uniform rod of length l is applied upon by two forces at its either end as shown. Surface is smooth. Which of the following option is correct ?
A
Length of rod will remains same
B
Length of rod will decrease
C
Length of rod will increase
D
None of these
Which of the following option is CORRECT about the figure shown below?
A
OA – AR = OB + BR
B
OA + AR = OB – BR
C
OA + AR = OB + BR
D
None of these
Which of the following option is CORRECT about the figure shown below?
