MCQ
Holes are charge carriers in
  • A
    Intrinsic semiconductors
  • B
    Ionic solids
  • C
    $P-$ type semiconductors
  • Both $(a)$  or $(c)$

Answer

Correct option: D.
Both $(a)$  or $(c)$
d
(d) In intrinsic semiconductors, electrons and holes both are charge carriers. In $P-$ type semiconductors (Extrinsic semiconductors) holes are majority charge carriers.

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

A camera filled with a polariser is placed on a mountain, in a manner to record only the reflected image of the sun from the surface of a sea as shown in the figure. If the sun rises at $6.00 \,AM$ and sets at $6.00 \,PM$ during the summer, then at .......... $PM$ time in the afternoon will the recorded image have the lowest intensity, assuming there are no clouds and intensity of the sun at the sea surface is constant throughout the day? (Refractive index of water $=1.33)$
The minimum distance between an object and its real image formed by a convex lens is
Activity of a radioactive substance can be represented by various unit. Select correct option
When objects at different distances are seen by the eye, which of the following remains constant
A concrete sphere of radius $R$  has a cavity of radius $ r$  which is packed with sawdust. The specific gravities of concrete and sawdust are respectively $2.4$  and $0.3$  for this sphere to float with its entire volume submerged under water. Ratio of mass of concrete to mass of sawdust will be
A circular loop has a radius of $5\, cm$ and it is carrying a current of $0.1\, amp$. Its magnetic moment is
Astigmatism (for a human eye) can be removed by using
If a train travelling at $72\,\, kmph$ is to be brought to rest in a distance of $200$ metres, then its retardation should be............$m{s^{ - 2}}$
The intensity of each source in Young's double slit experiment is $I_0$. Distance between the slits is $d = 5\lambda $, where $\lambda $ is the wavelength of monochromatic light used in the experiment. What will be the intensity of light in front of one of the slits on a screen (where slit and screen are at a distance $D = 10d $)
A body is thrown vertically up from the ground. It reaches a maximum height of $100\,m$ in $5\,sec$. After what time it will reach the ground from the maximum height position..........$sec$