NEET (NTA)National Eligibility cum Entrance Test (Medical) Physics: Questions 1121  1125 of 2320
Access detailed explanations (illustrated with images and videos) to 2320 questions. Access all new questions we will add tracking exampattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.
Rs. 600.00 or
How to register?
Question number: 1121
» Ray Optics » Power of a Lens
Question
If the focal length of a magnifier is 5 cm find the magnifying power of the lens for relaxed and strained eye.
Choices
Choice (4)  Response  

a.  4×, 2×  
b.  2×, 3×  
c.  l×, 2×  
d.  4×, 5× 
Question number: 1122
» Ray Optics » Lens Maker's Formula and Lens Formula
Question
A pin is placed 10 cm in front of a convex lens of focal length 20 cm, made of material having refractive index 1.5. The surface of the lens farther away from the pin is silvered and has a radius of curvature 22 cm. determine the position of the final image.
Choices
Choice (4)  Response  

a.  15 cm in front  
b.  11 cm in front  
c.  21 cm in front  
d.  31 cm in front 
Question number: 1123
» Electromagnetic Induction & Alternating Currents » LCR Series Circuit
Question
For a series LCR circuit R = X _{L} = 2X _{C}. The impedance of the circuit and phase difference between V and I respectively will be
Choices
Choice (4)  Response  

a. 
 
b. 
 
c. 
 
d. 

Question number: 1124
» Ray Optics » Reflection and Refraction of Light » Spherical Surface
Question
Two plane mirrors are placed at an angle a so that a ray parallel to one mirror gets reflected parallel to the second mirror after two consecutive reflections. The value of a will be
Choices
Choice (4)  Response  

a.  75°  
b.  30°  
c.  90°  
d.  60° 
Question number: 1125
Question
The charging current for a capacitor is 1 A, then the displacement current is
Choices
Choice (4)  Response  

a.  1 A  
b.  0  
c.  2 A  
d.  0.5 A 