MCQ
Identify the solar cell characteristics from the following options.
  • A


  • C

  • D

Answer

Correct option: B.

b
Conceptual $/$ theory

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

For intensity $I$ of a light of wavelength $5000\,\mathop A\limits^o $ the photoelectron saturation current is $0.40\,\mu A$ and stopping potential is $1.36\, V$, the work function of metal is ........... $eV$
Ratio of nuclear radii of ${ }^{135} Cs$ to ${ }^{40} Ca$ is
A step-up transformer operates on $220 \,V$ line and supplies $2.2 \,A$. The ratio of primary and secondary winding is $11: 50$. The output voltage in the secondary is .......... $V$
Calculate the wavelength of light used in an interference experiment from the following data : Fringe width $=0.03\,cm$. Distance between the slits and eyepiece through which the interference pattern is observed is $1\,m$. Distance between the images of the virtual source when a convex lens of focal length $16\,cm$ is used at a distance of $80\,cm$ from the eyepiece is $0.8\,cm$.
Three objects $A, B$ and $C$ are kept in a straight line on a frictionless horizontal surface. The masses of ${A}, {B}$ and ${C}$ are ${m}, 2\, {m}$ and $2\, {m}$ respectively. $A$ moves towards ${B}$ with a speed of $9$ ${m} / {s}$ and makes an elastic collision with it. Thereafter $B$ makes a completely inelastic collision with $C.$ All motions occur along same straight line. The final speed of $C$ is $....\,{m} / {s}$
A cord of negligible mass is wound around the rim of a wheel supported by spokes with negligible mass. The mass of wheel is 10 kg and radius is 10 cm and it can freely rotate without any friction. Initially the wheel is at rest. If a steady pull of 20 N is applied on the cord, the angular velocity of the wheel, after the cord is unwound by 1 m , would be :
Image
A conducting rod of length $L = 0.1\, m$ is moving with a uniform speed $v = 0.2\, m/s$  on conducting rails in a magnetic field $B = 0.5 \,T$ as shown. On one side, the end of the rails is connected to a capacitor of capacitance $C = 20\, \mu F$. Then the charges  on the capacitor plates are
A boy has $60\, kg$ weight. He wants to swim in a river with the help of a wooden log. If relative density of wood is $0.6$, what is the minimum volume of wooden log? (density of river water is $1000\, kg/m^3$)
$A$ small coil of radius $r$ is placed at the centre of $a$ large coil of radius $R,$ where $R > > r$. The coils are coplanar. The coefficient of mutual inductance between the coils is
For a uniformly charged ring of radius $R$, the electric field on its axis has the largest magnitude at a distance $h$ from its centre. Then value of $h$ is