Home/Class 12/Physics/

Question and Answer

Suppose that the lower half of the concave mirror’s reflecting surface in figure is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror?
Question: Suppose that the lower half of the concave mirror’s reflecting surface in figure is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror?

Answer

See the analysis
To Keep Reading This Answer, Download the App
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
To Keep Reading This Answer, Download the App
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play

Solution

Solution:-
Solution for Suppose that the lower half of the concave mirror’s reflecting surface in figure is covered with an opaque (non-reflective) material. What effect will this have on the image of an object placed in front of the mirror?
By taking the laws of reflection at all the remaining part of the mirror, the image of whole object will be formed even if lower part of concave mirror is covered with an opaque material. But since the area of the reflecting surface is reduced, so the intensity of image will be low(half). 
To Keep Reading This Solution, Download the APP
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
To Keep Reading This Solution, Download the APP
4.6
star pngstar pngstar pngstar pngstar png
Review from Google Play
Correct42
Incorrect0
Watch More Related Solutions
The ratio of a number of atoms present in a simple cubic, body centred cubic and face centred cubic structure are, respectively.( )
A. \(8:1:6\)
B. \(1:2:4\)
C. \(4:2:1\)
D. \(4:2:3\)
\(500 \ mL\) of \(0.2 \ M\) aqueous solution of acetic acid is mixed with \(500 \ mL\) of \(0.2 \ M\)\(HCl\) at \(250^{\circ }C\).
lf \(6 \ g\) of \(NaOH\) is added to the above solution, determine the final \(pH\) assuming there is no change in volume on mixing. \(K_{a}\) of acetic acid is \(1.75\times 10^{-5} mol/L\).
If \(\tan ^{-1}(\frac {1}{1+1.2})+\tan ^{-1}(\frac {1}{1+2.3})+\cdots +\tan ^{-1}(\frac {1}{1+n.(n+1)})=\tan ^{-1} \emptyset\), then find the value of \(\emptyset.\)
An experiment is performed to measure the molar heat capacity of a gas at constant pressure using Regnault’s method. The gas is initially contained in a cubical reservoir of size \( 40cm\times\;40cm\times\;40cm\) at \(600kPa\) at \( {27}^{\circ }C\). A part of the gas is brought out, heated to \( {100}^{\circ }C\) and is passed through a calorimeter at constant pressure. The water equivalent of the calorimeter and its contents is 100g. The temperature of the calorimeter and its content increases from \( {20}^{\circ }C\;to \space{30}^{\circ }C\) during the experiment and the pressure in the reservoir decreases to \(525kPa\). Specific heat capacity of water is = \( 4200Jk{g}^{-1}{K}^{-1}\) Calculate the molar heat capacity \( {C}_{p}\) from these data
A mobile phone lies along the principal axis of a concave mirror, as shown in figure. Show by suitable diagram, the formation of its image. Explain why the magnification is not uniform. Will the distortion of image depend on the location of the phone with respect to mirror ?
A particular hydrogen-like ion emits radiation of frequency \( 2.467 \times {10}^{15} Hz \)when it makes transition from n = 2 to n = 1. What will be the frequency of the radiation emitted in a transition from n = 3 to n = 1?
The average concentration of \(SO_{2}\) in the atmosphere over a city on a certain day is \(10\) ppm, when the average temperature is \(298 \)K. Given that the solubility of \(SO_2\) in water at 298 K is \(1.3653\) mol/L and \(pK_{a}\) of \(H_{2}SO_3\) is \(1.92\) estimate the pH of rain on that day.
If \((\tan ^{-1}x)^{2}+(\cot ^{-1}x)^{2}=\frac {5\pi ^{2}}{8}\) then find x
Light corresponding to the transition n = 4 to n = 2 in hydrogen atoms falls on cesium metal (work function 1.9 eV). Find the maximum kinetic energy of the photoelectrons emitted.
An element has a face-centred cubic (fcc) structure with a cell edge of a. The distance between the centres of two nearest tetrahedral voids in the lattice is ( )
A. \(\sqrt {2}\ a\)
B. \(a\)
C. \(\frac {a}{2}\)
D. \(\frac {3}{2}a\)

Load More