What is the friends near-point distance

Reference no: EM13656294

A person with a near-point distance of 32 cm is able to get a usable magnification of 12 with a particular magnifying glass. Her friend is only able to get a usable magnification of 7. What is the friend’s near-point distance?

Reference no: EM13656294

Questions Cloud

What makes the red filter appear red : If a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through a red filter, what color should the reflected rays be? Based on these observations, what makes the red filter appear red?

What is the peak value of potential difference across coil : A 2.40 H coil with a resistance of 3.95×10^2 Ohm is in series with a 4.86×10^3 Ohm resistor. This circuit is connected to an AC voltage source that gives 1.26×10^2 V (rms) at 1.79×10^2 Hz. What is the peak value of the potential difference across the..

Charge moves past a point in the coil during this operation : The magnetic field perpendicular to a single 13.7 cm diameter circular loop of copper wire decreases uniformly from 0.600 T to zero. If the wire is 2.25 mm in diameter, how much charge moves past a point in the coil during this operation?

Blue filter is placed over a light source aperture : If a blue filter is placed over a light source aperture so that the incident rays are blue and these rays pass through a green filter, what color should the reflected rays be? Based on these observations, what makes the green filter appear green?

What is the friends near-point distance : A person with a near-point distance of 32 cm is able to get a usable magnification of 12 with a particular magnifying glass. Her friend is only able to get a usable magnification of 7. What is the friend’s near-point distance?

What is the tire pressure in pascals : An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. During the process, the air is compressed to 26.0% of its original volume and the temperature is increased to 39.0°C.

Find magnitude of average induced emf in loop during time : A wire loop of radius 0.50 m lies so that an external magnetic field of magnitude 0.30 T is perpendicular to the loop. The field reverses its direction, and its magnitude changes to 0.20 T in 2.0 s. Find the magnitude of the average induced emf in th..

Find the final speed v of the spheres center of mass : A sphere of radius r starts from rest and rolls without slipping along a curved surface, dropping through a vertical distance of 0.596 m. Find the final speed v of the sphere's center of mass.

Swings on a frictionless pivot at the top end of the rod : A 2.2 kg wood block hangs from the bottom of a 1.2 kg , 1.0-m-long rod. The block and rod form a pendulum that swings on a frictionless pivot at the top end of the rod. A 11g bullet is fired into the block, where it sticks, causing the pendulum to..

User Account

All Pages