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The given graph represents the $V$-$I$ characteristics of a semiconductor device. Which of the following statements is correct?
The amount of energy required to form a soap bubble of radius $2 \text{cm}$ from a soap solution is nearly (surface tension of soap solution $= 0.03 \text{N m}^{-1}$)
Which of the following are not secondary metabolites in plants?
A Carnot engine has an efficiency of $50\%$ when its source is at a temperature $327^\circ\text{C}$. The temperature of the sink is
A particle executes linear simple harmonic motion with an amplitude of 3 cm. When the particle is at 2 cm from the mean position, the magnitude of its velocity is equal to that of its acceleration. Then, its time period in seconds is:
The displacement of a particle along the x-axis is given by $x = a \sin^2 \omega t$. The motion of the particle corresponds to:
From the given functions, identify the function which represents a periodic motion:
Candela is the unit of
When two displacements represented by $y_1 = a \sin(\omega t)$ and $y_2 = b \cos(\omega t)$ are superimposed, the motion is:
If a body is executing simple harmonic motion with frequency $n$, then the frequency of its potential energy is:
For the reaction, $2\text{Cl}(g) \rightarrow \text{Cl}_2(g)$, the correct option is :
A spring is stretched by $5 \text{ cm}$ by a force $10 \text{ N}$. The time period of the oscillations when a mass of $2 \text{ kg}$ is suspended by it is:
Match List-I with List-II. **List-I (Graphs)** (a) Displacement-time graph with decreasing amplitude (Damped) (b) Displacement-time graph with constant amplitude (Undamped) (c) Force-displacement graph (Linear relationship, F = -kx) (d) Energy-time graph (Constant total energy) **List-II (Situations)** (i) Total mechanical energy is conserved (ii) Bob of a pendulum is oscillating under negligible air friction (iii) Restoring force of a spring (iv) Bob of a pendulum is oscillating along with air friction Choose the correct answer from the options given below:
Identify the function which represents a non-periodic motion?
Match the following : Oxide Nature (a) $CO$ (i) Basic (b) $BaO$ (ii) Neutral (c) $Al_2O_3$ (iii) Acidic (d) $Cl_2O_7$ (iv) Amphoteric is correct option?
A cylinder of $500 \text{ g}$ and radius $10 \text{ cm}$ has moment of inertia (about its natural axis):
The circuit diagram shown here corresponds to the logic gate:
A double convex lens has a focal length of 25 cm. The radius of curvature of one of the surfaces is double of the other. What would be the radii if the refractive index of the material of the lens is 1.5?
Cheilosis occurs due to the deficiency of:
Based on electrode potentials in the table below: $\text{Cu}^{2+}(aq) + e^- \rightarrow \text{Cu}^+(aq) \quad E^\circ = 0.15 \text{ V}$ $\text{Cu}^+(aq) + e^- \rightarrow \text{Cu}(s) \quad E^\circ = 0.50 \text{ V}$ The value of $E^\circ_{\text{Cu}^{2+}/\text{Cu}}$ will be: