Which Elements Are Considered As Balancing Elements? (A) C And H, (B) N And S, (C)Ca And K, (D) Mg And Fe
The correct answer is (C) Ca And K. Calcium (Ca), Magnesium (Mg) and Potassium (K) are considered as balancing elements... View Article
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State Division Algorithm For Polynomials
The division of polynomials is similar to the division of numbers. The division algorithm for polynomials states that if f(x)... View Article
Students of a school staged a rally for a cleanliness campaign. They walked through the lanes in two groups. One group walked through the lanes AB, BC, and CA; where the Other through AC, CD, and DA. Then they cleaned the area enclosed within their lanes. If AB=9m,BC=40m,CD=15m,DA=28m and ∠B = 900, which group cleaned more area and by how much? Find the total area cleaned by the students.
Given: \(\begin{array}{l} \angle ABC \end{array} \) is a right-angled triangle. Using Pythagoras Theorem \(\begin{array}{l} \Rightarrow AC^{2} = AB^{2} + BC^{2}... View Article
The Decimal Expansion Of Sqrt 5 Is:(A) 2.236 (B) Finite Decimal (C) Non – Terminating Recurring (D) Non – Terminating Non-recurring
The correct answer is :(A) 2.236 Explore more such questions and answers at BYJU’S.
A Parallel Plate Capacitor Has Capacitance C. If It Is Equally Filled The Parallel Of Materials Of Dielectric Constant K1 And K2 Its Capacity Becomes C1 . The Ratio Of C1 And C Is
\(\begin{array}{l} C_{A} = \frac{K_{1}\epsilon _{0}A}{\frac{d}{2}} \end{array} \) \(\begin{array}{l} C_{B} = \frac{K_{2}\epsilon _{0}A}{\frac{d}{2}} \end{array} \) Capacitance, \(\begin{array}{l} C_{eq} = \frac{C_{1}}{C_{2}} \end{array}... View Article
Find The Single Discount Equivalent To Two Successive Discounts Of 20 %And 10%
Let the marked price of an article be Rs. 100 The first discount on it = Rs. 20 Price after... View Article
Two Simple Harmonic Motions Of Angular Frequency 100 And 1000 Rad S−1 Have The Same Displacement Amplitude. The Ratio Of Their Maximum Accelerations Is :
Maximum acceleration \(\begin{array}{l} a = -\omega ^{2} A \end{array} \) \(\begin{array}{l} \frac{a_{1}}{a_{2}} \end{array} \) \(\begin{array}{l} \Rightarrow \frac{\omega ^{2}_{1} A}{\omega ^{2}_{2}... View Article
Magnetic Field At The Center (At Nucleus) Of The Hydrogen-like Atoms (Atomic Number =z) Due To The Motion Of Electron In Nth Orbit Is Proportional To
\(\begin{array}{l} m_{e}\omega _{n}r^{2}_{n} = \frac{nh}{2\Pi } –[1] \end{array} \) \(\begin{array}{l} F = m_{e}a_{n} = \frac{Kq^{2}_{e}}{r^{2}_{n}} \end{array} \) \(\begin{array}{l} a_{n} =... View Article
While boarding an aeroplane, a passenger got hurt. The pilot showing promptness and concern, made arrangements hospitalise the injured and so the plane started late by 30 minutes to reach the destination, 1500 km away in time, the pilot increased the speed by 100 km/hr. The original speed/hour of the plane is ——.km/hr.
Let: The original speed of the plane be x km/hr The increased speed of the plane be (x + 100)km/hr... View Article
An ideal black body at room temperature is thrown into a furnace.it is observed that______(a)it is the darkest body at all times (b)it cannot be distinguished at all times (c) initially it is the darkest body and at later times the brightest(d) initially it is the darkest body and at later times it cannot be distinguished
The correct answer is (C) Initially It Is The Darkest Body And At Later Times The Brightest. Explore more such... View Article
Which Of These Liquefied Metal Expanding On Solidification_________.(A) Zinc(B) Gallium (C) Chlorine (D) Aluminium
The correct answer is (B) Gallium (Ga) Explore more such questions and answers at BYJU’S.
Two Concentric, Thin Metallic Spheres Of Radii R1 And R2(R1>r2) Bear Charges Q1and Q2 Respectively. Then The Potential At Distance R Between R1 And R2 Will Be
Potential due to sphere of radii \(\begin{array}{l} R_{2} is V_{2} = k \frac{Q_{2}}{r} \end{array} \) Potential due to sphere of... View Article
Use Lewis Symbols To Show Electron Transfer Between The Following Atoms To Form Cations And Anions: (A) K And S (B) Ca And O (C) Al And N.
Cations and anions form ionic bonds. A metal atom loses one or more electrons to form a cation and a... View Article
Write A Report In About 100 Words On The Topic The Prize Distribution Function
A Report On The Prize Distribution Function Last Wednesday, the annual prize distribution function was arranged in our school auditorium.... View Article
The Minimum Horizontal Acceleration Of The Container So That The Pressure At Point A Of The Container Becomes Atmospheric Is (The Tank Is Of Sufficient Height)
From the volume of conservation: \(\begin{array}{l} b(3 * 2) = (\frac{1}{2} * 3 (2 + x))b\end{array} \) Here, b is... View Article
Verify The Division Algorithm For The Polynomials P(X)=2×4 −6×3+2×2 −x+2 And G(X)=x+2.
Given: \(\begin{array}{l} P(x) = 2x^{4} − 6x^{3} + 2x^{2} − x + 2 \end{array} \) By taking g(x) = 0... View Article
For The Equillibrium, 2nocl(G)⇌2no(G)+cl2(G) The Value Of Equilibrium Constant Kc Is 3.75×10−4 At 1069k. Calculate The Kp For The Reaction At This Temperature.
Given reaction: \(\begin{array}{l} 2NOCL(g) ⇋ 2NO(g) + CL2(g) \end{array} \) \(\begin{array}{l} K_{P} = K_{C} * (RT)^{\Delta ng}\end{array} \) \(\begin{array}{l} \Rightarrow... View Article
Which Of The Following Pigments Are Found In Brown Algae?(A) Fucoxanthin(B) Chlorophyll A (C) Chlorophyll C (D) All Of These
The correct answer is (D) All Of These. Explore more such questions and answers at BYJU’S.
In Forced Oscillation Of A Particle The Amplitude Is Maximum For A Frequency ω1 Of Force, While The Energy Is Maximum For A Frequency ω2 Of The Force, Then: (A) ω1 > ω2 (B) ω1 < ω2 (C) ω1 = ω2 (D) None Of These
The correct answer is (C) ω1 = ω2 Explore more such questions and answers at BYJU’S.
The Ph Of Aqueous Ammonium Chloride Solution Is: A. Equal To 7. B. Less Than 7. C. Greater Than 7. D. Greater Than Or Equal To 7
The correct answer is B. Less Than 7 Explore more such questions and answers at BYJU’S.
