Testbook Logo
Exams SuperCoaching Test Series Skill Academy
More
Telugu
English
Hindi
Bengali
Marathi

Question

Download Solution PDF

5 మీటర్ల ఫోకల్ పొడవు గల పుటాకార కటకం శక్తి ఎంత?

  1. 5 D
  2. -5 D
  3. 0.2 D
  4. -0.2 D

Answer (Detailed Solution Below)

Option 4 : -0.2 D

Detailed Solution

Download Solution PDF
  • కటకం యొక్క శక్తి \(P = \frac{1}{f}\) ద్వారా ఇవ్వబడుతుంది.
  • ఇక్కడ f అనేది కటకం యొక్క నాభ్యంతరం.
  • ఒక పుటాకార కటకం విషయంలో, ఫోకల్ లెంగ్త్ ప్రతికూలంగా ఉన్నందున శక్తి ఎల్లప్పుడూ ప్రతికూలంగా ఉంటుంది.
  • కాబట్టి, \(P = \frac{1}{-5} = -0.2D\)
Download Solution PDF

More Optics Questions

Q1.The minimum distance of clear vision for normal human eye is ________ cm.
Q2.Which of the letter does not undergo lateral inversion in plain mirror?
Q3.Myopia and Hypermetropia can be respectively corrected by
Q4.ప్రెస్బయోపియాతో బాధపడుతున్న వ్యక్తులకు సంబంధించి ఈ క్రింది ప్రకటనలలో ఏది/ఏవి సరైనవి? 1. వారు రంగులను గుర్తించలేరు. 2. ఇది సాధారణంగా వృద్ధాప్యంతో అభివృద్ధి చెందుతుంది. 3. వారు కుంభాకార మరియు పుటాకార  లెన్సులను కలిగి ఉన్న ద్వి-నాభి లెన్సులు లేదా ప్రోగ్రెసివ్ లెన్సులను ధరిస్తారు. క్రింద ఇచ్చిన కోడ్ని ఉపయోగించి సమాధానాన్ని ఎంచుకోండి:
Q5.Lateral Magnification is defined as
Q6.The main reason for the blueness of the sky is ______
Q7.Optical Fibre works on the principle of :
Q8.Night vision cameras use
Q9.Mirage an example of :
Q10.The type of mirror used in vehicles to see the traffic on the rear side is

More Physics Questions

Q1.___________ waves cannot be transmitted through vacuum. 
Q2.A device which converts electrical energy into mechanical energy is called ___________.
Q3.Loudness of sound varies directly with vibrating body's  __________.
Q4.What is the mean value of 'g' on surface of the earth? 
Q5.The minimum distance of clear vision for normal human eye is ________ cm.
Q6.The unit of measurement of force is ____________.
Q7.Select most correct option . At high altitude, the boiling point of water decreases because there atmospheric__________.
Q8.Which of the letter does not undergo lateral inversion in plain mirror?
Q9.Light Year is used for measurement of _________.
Q10.Identify the fundamental parameter in physics? 

More General Science Questions

Q1.___________ waves cannot be transmitted through vacuum. 
Q2.At __________ temperature, both the Fahrenheit and Centigrade scales have the same value. 
Q3.A device which converts electrical energy into mechanical energy is called ___________.
Q4.Valency of element Helium is ________.
Q5.The volume of one mole of a gas at normal temperature and pressure is _________ Litre.
Q6.Which of the following element does not contain 'one' electron in its valance shell? 
Q7.Loudness of sound varies directly with vibrating body's  __________.
Q8.As compared to electron, proton is about __________ times heavier.
Q9.What is the mean value of 'g' on surface of the earth? 
Q10.The minimum distance of clear vision for normal human eye is ________ cm.
Exams
Test Series
SuperCoaching
Previous Year Papers
Latest Updates
MCQ Questions
Testbook Products & Resources for Students
Testbook USA
Books
Testbook Edu Solutions Pvt. Ltd.
1st & 2nd Floor, Zion Building,
Plot No. 273, Sector 10, Kharghar,
Navi Mumbai - 410210
[email protected]
Toll Free:1800 833 0800
Office Hours: 10 AM to 7 PM (all 7 days)
Company
About usCareers We are hiringTeach Online on TestbookPartnersMediaSitemap
Products
Test SeriesTestbook PassOnline CoursesOnline VideosPracticeBlogRefer & EarnBooks
Our Apps
Follow us on
Copyright © 2014-2022 Testbook Edu Solutions Pvt. Ltd.: All rights reserved
User PolicyTermsPrivacy
Get Free Access Now
Hot Links： teen patti master old version teen patti joy mod apk teen patti master 2024