MCQ
Microscope is an optical instrument which
- AEnlarges the object
- ✓Increases the visual angle formed by the object at the eye
- CDecreases the visual angle formed by the object at the eye
- DBrings the object nearer
✓
Answer
Correct option: B.
Increases the visual angle formed by the object at the eye
b
( b)In microscope final image formed is enlarged which in turn increases the visual angle.
( b)In microscope final image formed is enlarged which in turn increases the visual angle.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In a $AC$ circuit the voltage and current are described
→by $V = 200\,\sin \,\left( {319t\, - \,\frac{\pi }{6}} \right)\,volts$
and $i = 50\,\sin \,\left( {314t\, + \,\frac{\pi }{6}} \right)\,mA$
respectively. The average power dissipated in the circuit is......$watts$
The impurity atoms with which pure silicon may be doped to make it a $p-$type semiconductor are those of:
→An electromagnetic wave is represented by the electric field $\vec E = {E_0}\hat n\,\sin \,\left[ {\omega t + \left( {6y - 8z} \right)} \right]$. Taking unit vectors in $x, y$ and $z$ directions to be $\hat i,\hat j,\hat k$ ,the direction of propogation $\hat s$, is
→If an $8\,\Omega $ resistance and $6\,\Omega $ reactance are present in an $ac$ series circuit then the impedance of the circuit will be......$ohm$
→A thermo couple develops 200μV between 0℃ and 100℃. If it develops 64μV and 76μV respectively between (0℃ - 32℃) and (32℃ - 70℃) then what will be the thermo emf it develops between 70℃ and 100℃
Two identical conducting wires $AOB$ and $COD$ are placed at right angles to each other. The wire $AOB$ carries an electric current $I_1$ and $COD$ carries a current $I_2$ . The magnetic field on a point lying at a distance $d$ from $O$, in a direction perpendicular to the plane of the wires $AOB$ and $COD$, will be given by
→There are $10^{10}$ radioactive nuclei in a given radioactive element, Its half-life time is $1\, minute.$ How many nuclei will remain after $30\, seconds?$
→$(\sqrt{2}=1.414)$
The magnetic field to a small magnetic dipole of magnetic moment $M$, at distance $ r$ from the centre on the equatorial line is given by (in $M.K.S. $ system)
→The transformation ratio in the step-up transformer is
A uniform but time-varying magnetic field B(t) exists in a circular region of radius a and is directed into the plane of the paper, as shown. The magnitude of the induced electric field at point P at a distance r from the centre of the circular region
