The radius of curvature of a secondary mirror

Reference no: EM1312392

A Cassegrain astronomical telescope uses two mirrors to form the image. The larger (concave) objective mirror has a focal length f1 = +51.5 cm. A small convex secondary mirror is mounted d = 43.5 cm in front of the primary. As shown in the figure, light is reflected from the secondary through a hole in the center of the primary, thereby forming a real image 8.00 cm behind the primary mirror. Find the radius of curvature of the secondary mirror?

A. In order to completely melt a material,

Heat must be added to bring the material to the melting temperature & then the latent heat of fusion must be added to change the phase.
Heat must be added to make the object exp& to the melting volume
No heat needs to be added.
Stir while adding heat.

B. An aluminum rod 15 cm in length is heated from 10 degrees Celsius to 50 degrees Celcius. Find the change in length?

15 cm
8 cm
6 cm
None of the above.

C. Compute is Kepler’s first law of planetary orbits?

The planets move on ellipses with the Sun at the center of the ellipse.
The planets revolve around the Earth.
The position of the planets foretells the future.
The planets move on ellipses with the Sun at one of the foci.

Reference no: EM1312392

Questions Cloud

Impact of transactions involving operating assets : Identify the cash flows operating , financing , investing Non cash items - Impact of Transactions Involving Operating Assets on Statement of Cash Flows

Capitalize or revenue recognize the expenditure : Capitalize or Revenue recognize the expenditure on Acquisition cost - The equipment has an estimated life of five years and an estimated residual value of $6,000.

Calculating the suitable mean response time : Calculate the suitable mean response time from both proposed locations and find out which proposed site must be selected for the new emergency facility.

Hypothesis-population proportion : What is the appropriate conclusion based on the outcome of the hypothesis test?

The radius of curvature of a secondary mirror : A Cassegrain astronomical telescope uses two mirrors to form the image. Compute the radius of curvature of a secondary mirror

Computation of the borrowable amount through debentures : Computation of the borrowable amount through debentures and Delaware borrow under a term loan at 13 percent interest without breaching the indenture restriction

Reason behind the increase in price : Why the price of computers dropped as their power and features has have increased?

Upper and lower bounds on average life expectancy : Find out the upper and lower bounds on average life expectancy of the Canadian women such that at least 90% of all population is included.

Case control studies – hospitals and neighbourhood. : With respect to the case-control studies compare the usefulness of the hospital and neighbourhood (community) controls. Your comparison must involve a comparison of the cost, feasibility, co-operation of the controls, recall bias, selection of contro..

User Account

All Pages