MCQ
To remove hyper-metropia lens used is :
  • Convex
  • B
    Concave
  • C
    Cylindrical
  • D
    Plano-Convex

Answer

Correct option: A.
Convex
A

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

In a series $\text{RLC}$ circuit that is operating above the resonant frequency, the current.
The amplification factor of a triode is $20$ and trans$-$conductance is $3$ milli mho and load resistance $3 \times 10^4 \Omega$  then the voltage gain is
The principle of controlled chain reaction is used in(a) Atomic energy reactor(b) Atom bomb(c) The core of sun(d) Artificial radioactivity
   
   
A point source of light is placed at a distance, of 2f from a converging lens of focal length f. The intensity on the other side of the lens is maximum at a distance:
A $40\mu F$ capacitor in a defibrillator is charged to $3000\ V.$ The energy stored in the capacitor is sent through the patient during a pulse of duration $2ms.$ The power delivered to the patient is
Three bulbs of 40 W, 60 W, 100 W are arranged in series with 220 volt supply which bulb has minimum resistance(a) 100 W(b) 40 W(c) 60 W   (d) Equal in all bulbs
       
There exists an electric field of 1N/C along Y direction. The flux passing through the square of 1m placed in XY plane inside the electric field is?
For nuclei with A > 100:
  1. The binding energy of the nucleus decreases on an average as A increases.
  2. The binding energy per nucleon decreases on an average as A increases.
  3. If the nucleus breaks into two roughly equal parts, energy is released.
  4. If two nuclei fuse to form a bigger nucleus, energy is released.
A transistor is used as an amplifier in CB mode with a load resistance of 5 k W the current gain of amplifier is 0.98 and the input resistance is 70 W, the voltage gain and power gain respectively are(a) 70, 68.6(b) 80, 75.6(c) 60, 66.6(d) 90, 96.6
       
As the mass number A increases, which of the following quantities related to a nucleus do not change?