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Kiran Shetty
Subject: Maths
, asked 9 hours, 56 minutes ago
How to solve option C
Answer
0
Kiran Shetty
Subject: Maths
, asked 9 hours, 57 minutes ago
How to solve option B
Answer
0
Dharini Deiveegan
Subject: Maths
, asked 9 hours, 58 minutes ago
Show that there is no positive integer n for which root n-1 + root n+1 is rational.
Answer
1
Yugansh Gagroo
Subject: Science
, asked 10 hours, 3 minutes ago
1.(a) Determine the focal length of a spherical mirror which forms three times magnified real image of an object placed 16 cm in front of it.
(b) At what distance should an object be placed from a concave mirror of focal length 18 cm to obtain a real image at 24 cm from it. What will be the magnification produced in this case?
(c) How far should an object be placed from a concave mirror of focal length 20 cm to obtain its image at a distance of 30 cm from the mirror? What will be the height of the image if the object is 6cm tall?
Answer
1
Yugansh Gagroo
Subject: Science
, asked 10 hours, 5 minutes ago
A 2.0 cm tall object is placed perpendicular to the principal axis of a convex mirror of focal length 15 cm. At what distance from the mirror, should the object be placed so that it forms an image 10 cm from the lens? Also find the nature and the size of image formed.
Answer
1
Dhruvi
Subject: Maths
, asked 10 hours, 21 minutes ago
how do you know if you should add or subtract in elimination? explain with examples.
Answer
1
Dhruvi
Subject: Maths
, asked 10 hours, 48 minutes ago
Hello i have a doubt in this question for elimination method why are we multiplying 2 to the second equation? and why cant we use other numbers like 3 , 4 , 5 etc.?
Answer
3
Nishant R Wagle
Subject: Science
, asked 10 hours, 58 minutes ago
Zn +NaOH +NaNo3 -------- Na2ZnO2 +NH3 +H2O balance the equation
Answer
2
Nishant R Wagle
Subject: Science
, asked 11 hours, 28 minutes ago
Al+ H2SO4 ------Al2(SO4)3+SO2+H2O
Answer
1
Nishant R Wagle
Subject: Science
, asked 11 hours, 39 minutes ago
Balance the equation SbCl3 +H2S --------- Sb2S3 + HCl
Answer
1
Abhay Bansal
Subject: Maths
, asked 11 hours, 44 minutes ago
The graphical solution of -3x = 12 and 5y = 13 has
Answer
1
Navya Agarwal
Subject: Maths
, asked 11 hours, 57 minutes ago
Kindly answer question
Answer
1
Pragya Dixit
Subject: English
, asked 12 hours, 35 minutes ago
suppose you visited uttarakhand during your summer vacation and you spent 10-15 days there.so now write your observations of every day whatever you had experienced or onserved.
Answer
1
Savita Mahajan
Subject: Science
, asked 13 hours, 4 minutes ago
Plz solve urgently dear experts
Answer
1
Savita Mahajan
Subject: Science
, asked 13 hours, 5 minutes ago
Plz solve urgently dear experts :
Answer
1
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What are you looking for?

(b) At what distance should an object be placed from a concave mirror of focal length 18 cm to obtain a real image at 24 cm from it. What will be the magnification produced in this case?

(c) How far should an object be placed from a concave mirror of focal length 20 cm to obtain its image at a distance of 30 cm from the mirror? What will be the height of the image if the object is 6cm tall?