मराठी
तामिळनाडू बोर्ड ऑफ सेकेंडरी एज्युकेशनएस.एस.एल.सी. (इंग्रजी माध्यम) इयत्ता १०

Column - IColumn - II1RetinaaPath way of light2PupilbFar point comes closer3Ciliary musclescnear point moves away

Advertisements
Advertisements

प्रश्न

Match the following:

Column - I Column - II
1 Retina a Path way of light
2 Pupil b Far point comes closer
3 Ciliary muscles c near point moves away
4 Myopia d Screen of the eye
5 Hypermetropia e Power of accommodation
जोड्या लावा/जोड्या जुळवा
Advertisements

उत्तर

Column - I Column - II
1 Retina d Screen of the eye
2 Pupil a Pathway of light
3 Ciliary muscles e Power of accommodation
4 Myopia b Far point comes closer
5 Hypermetropia c Near point moves away
shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 2: Optics - Evaluation [पृष्ठ ३०]

APPEARS IN

सामाचीर कलवी Science [English] Class 10 SSLC TN Board
पाठ 2 Optics
Evaluation | Q IV. | पृष्ठ ३०

संबंधित प्रश्‍न

Ranbir claims to have obtained an image twice the size of the object with a concave lens. Is he correct? Give a reason for your answer.


A converging lens has focal length of 50 mm. What is the power of the lens?


The power of a lens is + 1.0 D is : 


Define power of a lens. Write its units. Deduce the relation `1/f =1/f_1  +1/f_2`for two thin lenses kept in contact coaxially.


A thin converging lens is formed with one surface convex and the other plane. Does the position of image depend on whether the convex surface or the plane surface faces the object?


A double convex lens has two surfaces of equal radii R and refractive index \[m = 1 \cdot 5\]


Consider three converging lenses L1, L2 and L3 having identical geometrical construction. The index of refraction of L1 and L2 are \[\mu_1   \text{ and }   \mu_2\] respectively. The upper half of the lens L3 has a refractive index \[\mu_1\] and the lower half has \[\mu_2\]  following figure . A point object O is imaged at O1 by the lens L1 and at O2 by the lens L2placed in same position. If L3 is placed at the same place,

(a) there will be an image at O1
(b) there will be an image at O2.
(c) the only image will form somewhere between O1 and O2
(d) the only image will form away from O2.


If the lens is of focal length 25 cm. Calculate the power of the lens.


If there is a convex lens of focal length 75 cm and a concave lens of focal length 40 cm, then calculate their combined power and combined focal length.


Define power of a lens. What is its unit? One student uses a lens of focal length 50 cm and another of –50 cm. What is the nature of the lens and its power used by each of them?


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×