Explanation

Homogeneous liquid equilibria can be affected by temperature changes,

It as the temperature can influence the equilibrium position.

Pressure changes may also affect equilibria but to a lesser extent than temperature changes.

Explanation

We are given:

• A 30 cm long string
• One end is clamped (fixed), and the other is free to move transversely
• It is vibrating in its second harmonic

We are to find the wavelength of the constituent traveling waves

The allowed standing wave lengths are: L=(n−1/2​) λ​/2 ,for n=1,2,3,…

So:

• 1st harmonic (n = 1):

  L=λ​/4⇒ λ=4L=120cm

• 2nd harmonic (n = 2):

  L= 3λ/4​ ⇒ λ=4L/3​ =4×30/3 =40cm

Explanation

• Neurons are the basic structural and functional units of the nervous system.
• They are specialized cells that transmit and process information through electrical and chemical signals.

Explanation

If one mole of gaseous hydrogen is mixed with one mole of gaseous iodine in an empty container, then with time, the forward reaction decreases

Because as the reaction proceeds, the concentration of hydrogen and iodine decreases, leading to a slower rate of forward reaction, while the reverse reaction starts to increase until equilibrium is reached. 

Explanation

If two metallic conductors have the same resistivity, they can be differentiated based on their temperature coefficient. 

The temperature coefficient of resistivity indicates how much the resistivity of a material changes with a temperature change.

Materials with the same resistivity can have different temperature coefficients, meaning their resistance will change differently as temperature changes. 

Explanation

Bacillus refers to rod-shaped bacteria.

Coccus are spherical.

Spirillum are spiral-shaped.

Explanation

Polarization is a property of transverse waves, where the direction of vibration can be oriented in various directions.

Ultrasonic waves are longitudinal waves and cannot be polarized.

Explanation

All the listed fields (gravitational, electric, and magnetic) are conservative fields.

In conservative fields, the work done moving a particle between two points is independent of the path taken.

Explanation

The current produced by induced EMF depends on :

• Area of the coil
• Turns of the coil
• Strength of the magnetic field in which the coil rotates

Explanation

Normative ethics is a branch of philosophy that studies how people should act morally.

It's concerned with what is good, what actions are right or wrong, and what people ought to do.