A 25.0 µF capacitor is connected to a 24.0 V power supply. Once the capacitor is fully charged the power supply is disconnected so that the charge on the capacitor remains constant. A piece of material having a dielectric constant of 3.75 is placed between the plates, completely filling the space between them. By how much did the energy stored in the capacitor change during the insertion? -9.9 mJ -5.28 mJ -3.6 MJ -2.64 mJ

Q: (b) The 11.5 kg slender rod pivoted about point O is pressed against a spring at point A, in which…

A: Angular velocity is the rate of angular displacement . It it the derivative of angular displacement…

Q: In the picture below, the image created on the right is a(n) image. Do NOT use uppercase letters,…

A: In the eye, a convex lens is situated, which focuses and converges lights of different objects on…

Q: Define 1 dioptre of power of a lens.

A: Power of a lens is its ability to converge rays of light falling on it. Diopter is the unit of…

Q: Consider an extended object placed to the left of a bi-convex lens with focal length of 10 [cm] as…

A: Given: The focal length of the convex lens is 10 cm. The position of the image is 5 cm from of the…

Q: Many expressions in special relativity contain the gamma (y) factor. 1 Y = v²lc² In the equation, v…

A:

Q: Instructions: Here are some practice problems to make you familiar with these concepts. Please…

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Q: Define the term power of a lens. In what unit it is expressed?

A: Power of lens is the ability of the lens to converge the rays of light falling on it.

Q: For Convex mirror Draw the case in a long bond paper: place the object at any location Note:…

A: A convex mirror is a mirror in which the reflective surface curves towards the light source. This…

Q: Describe which type of lens is needed to correct for farsightedness. Sketch a small picture to…

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Q: a.) Draw a ray diagram for this arrangement to locate the image with all principal rays for a…

A: From the ray diagram, we can note down the object distance and focal length. The object height ho=4…

Q: Draw a ray diagram for each of the following, and then draw the image formed. Please add complete…

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Q: A fountain sends a stream of water straight up into the air to a maximum height of 4.21 m. The…

A:

Q: Explain in detail how the making of a periscope can help understand geometrical optics and…

A: Periscope:  A periscope is defined as an instrument used for observing over, around, or through an…

Q: In the figure below (which is not to scale) the lens creating the real, inverted image is not shown.…

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Q: Write the formulae which show the relationship between image distance, object distance and focal…

A: Given :  object distance, image distance and focal length

Q: if you change the curvature of the lens, how the focal length changes? Explain your observations…

A: The focal length of lens depends on the curvature of lens. The lens equation is given as, 1f=1u+1v

Q: Find the sum of the given vectors. In total, you will find Rx, Ry, R and A (in standard position).…

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Q: The figure below shows a battery connected to a circuit. The potential difference across the battery…

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Q: 4. A disc of radius 0.5 m starts from rest and accelerates with a constant angular acceleration of !…

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Q: in step 1 why is the image distance -4 cm?

A: First we know Concave lens can never form a real image, That is it always forms a virtual image And…

Q: A concave mirror of focal length 17.5 cm forms a real image 24.8 cm from the mirror. What is the…

A:

Q: Two infinitely long cables lie on Z axis having radius of r1=4a, r2- 5a carrying stationary…

A: Solution: a). Using amperes law the magnetic field can be calculated at the specified point. The…

Q: Define power of lens.

A:

Q: Define power of lens. Write its S.I unit.

A: Power of lens is defined as the inverse of the focal length of the lens. Focal length of the lens is…

Q: Use the Schrödinger equation to calculate the energy of a 1-dimensional particle-in-a-box system in…

A: Problem 1 Wavefunction of particle in a box is given by, ψx=2LsinnπxL

Q: Label the parts of a abbe refractometer and give its uses.

A: The parts of a abbe refractometer and give its uses.

Q: A hospital traction device pulls on a foot, as shown in the figure below. The tensions T, and T,…

A: Mass , m = 5 kg To find = x and y components of reaction force .

Q: 5) A 100.-newton force acts on point P, as shown in the diagram below. What is the magnitude of the…

A: Given: The magnitude of the force P is 100 N. The angle of force P with horizontal is 30o.

Q: In some of the images there appears to be a secondary source of light that is coming from the same…

A: The following phenomenon in which a beam of incident light splits into two is called  double…

Q: 2. Find the nuclear radii of the following nuclides: a. H b. Co C 197 79Au d. 23 Pu

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Q: Regarding image formation frim spherical mirrors: What apeture size would guve the best possible…

A: in spherical mirrors whose aperature is much smaller then its radius of curvature. this give the…

Q: m but when you used the formula to verify this answer your answer comes out to be -2cm so is the…

A: Solution: As it is known, the concave lens is a diverging lens. The incident ray on the lens, after…

Q: Algae

A: Given: Power Plant Type: Algae

Q: 1. How might you determine the focal length more accurately? 2. How does the size of the image of…

A: (a). The focal length in terms of the radius of curvature is, F=R2 where F is the focal length and R…

Q: 3. Two resistors are connected in series. The total voltageis 12.0 V. The values of the resistances…

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Q: What is difference between angle of prism and angle of minimum deviation? Explain comprehensively…

A: ANGLE OF PRISM: The angle between the two lateral faces of a prism is called the angle of the prism…

Q: B A D 12 12 24 C.

A: Given  Concave lens with focal point f=-6cm

Q: What are primary images

A: The first image formed by the reflection is called a primary image.

Dielectric Constant Of Water

Water constitutes about 70% of earth.  Some important distinguishing properties of water are high molar concentration, small dissociation constant and high dielectric constant.

Electrostatic Potential and Capacitance

An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.