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A parallel beam of light incident on a concave lens of focal length 10 cm emerges as a parallel beam from a convex lens placed coaxially, the distance between the lenses being 10 cm. The focal length of the convex lens in cm is
17
Nov
A parallel beam of light incident on a concave lens of focal length 10 cm emerges as a parallel beam from a convex lens placed coaxially, the distance between the lenses being 10 cm. The focal length of the convex lens in cm is A parallel beam of light incident on a concave lens of [...]
The size of the image of an object, which is at infinity, as formed by a convex lens of focal length 30 cm is 2 cm. If a concave lens of focal length 20 cm is placed between the convex lens and the image at a distance of 26 cm from the convex lens, calculate the new size of the image
17
Nov
The size of the image of an object, which is at infinity, as formed by a convex lens of focal length 30 cm is 2 cm. If a concave lens of focal length 20 cm is placed between the convex lens and the image at a distance of 26 cm from the convex lens, calculate [...]
Consider the situation as shown. If u1 =1.5, u2 =1.2 and each radius of curvature is 14 cm, the image will be formed at distance
17
Nov
Consider the situation as shown. If u1 =1.5, u2 =1.2 and each radius of curvature is 14 cm, the image will be formed at distance Consider the situation as shown. If u1 =1.5 the image will be formed at distance u2 =1.2 and each radius of curvature is 14 cm November 17, 2020 Category: Cengage [...]
A concave lens and a convex lens have same focal length of 20cm and both put in contact this combination is used to view an object 5cm long kept at 20cm from the lens combination. As compared to object the image will be
17
Nov
A concave lens and a convex lens have same focal length of 20cm and both put in contact this combination is used to view an object 5cm long kept at 20cm from the lens combination. As compared to object the image will be A convex lens of glass has power P in air. If it [...]
A beam of parallel rays is brought to focus by a plano-convex lens. A thin concave lens of the same focal length is joined to the first lens. The effect of this is :
17
Nov
A beam of parallel rays is brought to focus by a plano-convex lens. A thin concave lens of the same focal length is joined to the first lens. The effect of this is : A beam of parallel rays is brought to focus by a plano-convex lens. A thin concave lens of the same focal [...]
In a saturated solution of AgCl, NaCl is added gradually the concentration of Ag+ is plotted against the concentration of Cl− the graph appears as
17
Nov
In a saturated solution of AgCl, NaCl is added gradually the concentration of Ag+ is plotted against the concentration of Cl− the graph appears as In a saturated solution of AgCl NaCl is added gradually the concentration of Ag+ is plotted against the concentration of Cl− the graph appears as November 17, 2020 Category: Chapter [...]
A 1 litre solution containing NH4Cl and NH4OH has hydroxide ion ion concentration of 10^−6) mol/litre. Which of the following hydroxides could be precipitated when the solution is added to 1 litre solution of 0.1 M metal ions? (I) Ba(OH)2(Ksp=5×10^−3) , (II) Ni(OH)2(Ksp=1.6×10^−16) (III) Mn(OH)2(Ksp=2×10^−13) , (IV) Fe(OH)2(Ksp=8×10^−16)
17
Nov
A 1 litre solution containing NH4Cl and NH4OH has hydroxide ion ion concentration of 10^−6) mol/litre. Which of the following hydroxides could be precipitated when the solution is added to 1 litre solution of 0.1 M metal ions? (I) Ba(OH)2(Ksp=5×10^−3) , (II) Ni(OH)2(Ksp=1.6×10^−16) (III) Mn(OH)2(Ksp=2×10^−13) , (IV) Fe(OH)2(Ksp=8×10^−16) Bromothymol blue is an indicator with a [...]
When equal volumes of the following solutions are mixed precipitation of AgCl(Ksp = 1.8 × 10^−10) will occur with
17
Nov
When equal volumes of the following solutions are mixed precipitation of AgCl(Ksp = 1.8 × 10^−10) will occur with When equal volumes of the following solutions are mixed precipitation of AgCl(Ksp = 1.8 × 10^−10) will occur with November 17, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 [...]
In which of the following cases is the solution of AgCl unsaturated?
17
Nov
In which of the following cases is the solution of AgCl unsaturated? In which of the following cases is the solution of AgCl unsaturated? November 17, 2020 Category: Chapter 6 - Ionic Equilibrium (Level 1 and Level 2) , Chapter 7 - Equilibrium , N Awasthi Physical Chemistry ,
Bromothymol blue is an indicator with a Ka value of 6×10^−5. What % of this indicator is in its basic form at a pH of 5 ?
17
Nov
Bromothymol blue is an indicator with a Ka value of 6×10^−5. What % of this indicator is in its basic form at a pH of 5 ? Bromothymol blue is an indicator with a Ka value of 6×10^−5. What % of this indicator is in its basic form at a pH of 5 ? November [...]