A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length ...

Channel:
PW Solutions
Subscribers:
515,000
Published on ● Video Link: https://www.youtube.com/watch?v=5BGUdKcQk_I


Duration: 3:04
6 views
0

A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length is \( 2 / 3 \). Their equivalent focal length is \( 30 \mathrm{~cm} \). What are their individual focal lengths?
(A) \( -75,50 \)
(B) 75,50
(C) \( -10,15 \)
(D) \( -15,10 \)
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-16पुराजैविक (प्रोबायोटिक) को कोएसरवेट्स नाम किसने दिया?
2022-11-16To investigate the beta-decay of \( \mathrm{Mg}^{23} \) radionuclide, a counter was activated at...
2022-11-16Two straight metallic strips each of thickness \( t \) and length \( l \) are rivetted together....
2022-11-16Write down the square of each of the following expressions: \[ \frac{3 a^{3}}{4 b^{2}} \]
2022-11-16जनसंख्या की शुन्य वृद्धि" का अर्थ है-" (A) जन्म-दर मुत्य-दर को संतुलित करती है (B) जन्म-दर मुत्य...
2022-11-16फ्लुओरीन बर्फ से अभिक्रिया करके यह परिवर्तन लाती है\( \mathrm{H}_{2} \mathrm{O}(\mathrm{s})+\mat...
2022-11-16Comment on the spontaneity of a reaction at constant temperature and pressure when (i) \( \Delta...
2022-11-16A speaks truth in \( 75 \% \) and \( B \) in \( 80 \% \) of the cases. In what percentage of cas...
2022-11-16द्राए स्खवन विधि में ऐिधित हेनेटे का क्या कार्य है
2022-11-16After how many days will \( 1 / 20 \) th of the radioactive element remain, if the half-life of ...
2022-11-16A convex lens is in contact with concave lens. The magnitude of the ratio of their focal length ...
2022-11-16Determine the value of \( k \) for which \( x+2 \) is a factor of \( (x+1)^{7}+(2 x+k)^{3} \)
2022-11-16The equations of the latusrectum and the tangent at the vertex of a parabola are \( x+y=8 \) and...
2022-11-16राउल्ट के नियम से धनात्मक विचलन दर्शाने वाले अनादर्श विलयन के लिए \( \Delta H_{\text {मिश्रण }} ...
2022-11-16Two balls are thrown with the same initial velocity at angles \( \theta \) and \( \left(90^{\cir...
2022-11-16Giving electron dot diagrams indicate the type of bonding between the following: \( { }_{1} \mat...
2022-11-16वाष्पशील द्रवों के विलयनों के लिए किसी अवयव का आंशिक वाष्प दाब उसके तथा विलयन में \( \cdots \cdo...
2022-11-16Which of the following statements are not true ? (A) Size of degree is smallest on Celsius scale...
2022-11-16Write short notes on: Coral reefs.
2022-11-16Intracellular receptors are mostly (A) cytoplasmic receptors only (B) Content not found (C) nucl...
2022-11-16If \( \sin x=\frac{\sqrt{5}}{3} \) and \( x \) lies in IInd quadrant, find the values of \( \cos...