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হোম›নবম-দশম শ্রেণি›English Version›Science›C-05 — Light for Sight›C-05-Q094

C-05-Q094mediummulti_combo_mcq

For a convex lens — Which of the following is correct?

its power is positive
its middle part is thin and edges are thick
it converges parallel rays at a point

ai and ii
bi and iii
cii and iii
di, ii and iii

Kপূর্ববর্তী

94/109

Jপরবর্তী

এই অধ্যায়ের আরও প্রশ্ন

C-05-Q095What is the name of the defect of the eye mentioned in the figure (image formed in front of the retina)?
C-05-Q096What is the cause of this defect (myopia)?
C-05-Q097What is refraction of light?
C-05-Q098If the least distance of distinct vision for a person is 20 cm, it means —
C-05-Q099Sejuti cannot clearly see the writing on the board from the back bench. Which defect is she suffering from?
C-05-Q100Sejuti's father cannot read the newspaper held close but can read it after moving it further. He should use sp
C-05-Q101Which type of defect does Sejuti's father suffer from?
C-05-Q102The mirror placed on a stand at a blind turn of a hilly road is —
C-05-Q103The three mirrors P, Q and R fitted in a car typically consist of —
C-05-Q104A lens having a power of means —

C-05 — Light for Sight — সব প্রশ্ন দেখুন (109টি) →