The power of spectacles - What does D mean ?

1 Answer

Answer :

The power of spectacles - d means that the power of spectacles is negative. And its focal length is 1 meter.

Related questions

Description : How should a man wearing spectacles work with a microscope?

Last Answer : – He should keep on wearing spectacles

Description : Spectacles used for viewing 3D films have – (1) Bifocal lens (2) Convex lens (3) Concave lens (4) Polaroid

Last Answer : (4) Polaroid Explanation: A polarized 3D system uses polarization glasses to create the illusion of three-dimensional images by restricting the light that reaches each eye, an example of stereoscopy. ... and blocks the light polarized in the opposite direction, each eye sees a different image.

Description : Spectacles used for viewing 3D films have (1) Bifocal lens (2) Convex lens (3) Concave lens (4) Polaroids 

Last Answer : Polaroids

Description : How should I react if a bully truck driver beats up on a guy wearing spectacles in a diner?

Last Answer : Post it on Youtube.

Description : Who are some famous people/characters that you like, who are/were known for wearing spectacles?

Last Answer : Johnny Depp

Description : Can I use glasses in front of computer all the time ? You have to work on the computer all the time. I know there is a lot of damage to the eyes , but what to do. I want to use one type of ... use to reduce the damage to my eyes ?? I would be happy to say the price of the glasses , please.

Last Answer : I myself use computer for 8 hours even if it is less throughout the day. I have been using computer for 10 years , Alhamdulillah I have no problem. If you keep your eyes closed for half an ... the market. Price 1200-1500 rupees If you have symptoms like headache , blurred vision, consult a doctor.

Description : R = -0.25 Into 15 Degree L = -0.25 Into 175 Degree Which would be better to use ? Spectacles or contact lenses ?

Last Answer : If you want to use contact lenses, but it is very useful, it is important to take some precautions. Each contact lens has a specific expiration date. It can be 3 months-6 months-1 year. ... cheap quality products that hurt your eyes while keeping an eye on the price. Learn more about other things

Description : Compose the funny poem of two lines with or without a rhyme scheme, on ‘The Spectacles’.

Last Answer : Compose the funny poem of two lines with or without a rhyme scheme, on ‘The Spectacles’.

Description : The tongue justifies the possession of the spectacles on behalf of the nose.

Last Answer : The tongue justifies the possession of the spectacles on behalf of the nose. Pick up the ... the Nose and complete the following web diagram.

Description : Why do people blow air on their spectacles?

Last Answer : You can either blow the dust off the lenses or wipe them with asoft cloth - your preference

Description : Who tests eyesight and sells spectacles?

Last Answer : Is an optician

Description : Why does Charles Wallace want to take mrs. Who is spectacles from meg?

Last Answer : Need answer

Description : When was spectacles invented?

Last Answer : The first eyeglasses were made in Italy at about 1286.

Description : A man wearing spectacles, when working with a microscope (a) Cannot see anything through the microscope (b) Should deep on wearing spectacles (c) Should take off his spectacles (d) May work with or without spectacles

Last Answer : Ans:(c)

Description : Do all Andean bears have spectacles?

Last Answer : No, the face markings are different on each bear and some only have partial “spectacles” , or even no face markings at all

Description : Advanced keratoconus is least to be corrected when treated by: a. Hard contact Lens, b. Rigid gas permeable (RGP) contact lens c. Spectacles. d. Keratoplasty.  

Last Answer : ANSWER: C