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(chatquestion)...marking. page of the booklet. Submit both the question paper and the booklet for ng the correct option in the question paper and co Use the following information to answer questions I to 3. A random sample of 28 FUPRE students read a mean of 1.2 book- TYPE A in a month. 1. At 0.05 level of significance, determine the calculated valục mean number of books read per month is less than 2 (a)-0.8 ition of 2.14 books e claim that the 01 2. The table value for this test is (b) 0.80 (c) 1.98 (d)-1.98 (a) 1.96 3. The decision for the hypothesis is (a) Reserve judgment 4. The variance of a set of data is 40, what is the variance if each element of the data is divided by 2 (a) 40 S. The variance of a set of data is 30, what is the variance if 2 is subtracted from each element of the data (a) 60 Use the following information to answer questions 6 to 8. The mean price of a dozen roses at Shoprite from a random sample of size 30 is 48.33 with S = 6.07. 6. The calculated value of the statistic for testing the claim that the mean price is higher than 45 at a =1° (a) 3.33 7. What is the table value for this test (a) 1.96 8. What is the decision for the hypothesis (a) Reserve judgment (b) 1.65 (c) 2.252 (d) 1.703 (b) Accept Ho (c) Cannot reject Ho (d) Reject Ho (b) 10 (c) 160 (d) 80 (b) 30, (c) 90 (d) 120 (b) 3.0 (c) 1.11 (d) 2.54 (b) 2.33 (c) 1,64 (d) 2.58 (b) Reject Ho (c) Cannot reject Ho (d) Accept Ho %3D bottles, x= 74.3 cl was found. Construct a 95% confidence interval for u (a) (71.64, 76.96)(b) (71.85, 76.75) (c) (-71.64,76.96) (d) (-71.85,76.75) 9. The volume of wine filled by a bottling machine is normally distributed with o = 5 cl. In a sar 10. The 95% confidence interval for a data set with n = 34,x = 3.54,S = 0.13 is (d) (-3:40, 3.50) %3D (c) (3.40, 3.50) (a) (3.50, 3.58) (b) (-3.50, 3.58) llowing information to answer questions 11 to 13. 35 S = 1.2, n2 = 50. between the two sam...(Please number 4 and 5 I need explanation on it please)

asked Mar 5, 2020 by balaji.thirumalai
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(chatquestion)...48 • Optics and Modern Physics Type 6. To find a rough image of a square or rectangular type of object kept along the axis Concept (i) If object is towards Por C, then its image is also towards P or C. (ii) If object is towards F, then its image is towards infinity and it is more magnified Slu O Example 7 A square mnqp is kept between F and C on the principal axis of a concave mirror as shown in figure. Find a rough image of this object. Solution Object is placed between F and C, therefore, image is real, inverted magnified and beyond C. Further pq is towards F. Therefore, its image p d is towards infinity and it is more magnified. A rough image is as shown alongside. For Usi Sol Fo Us From the ray shown in figure, we can see that n' g will be a straight line. Exercise In the given problem, focal length of mirror is 30 cm and side of square is 10 cm with pP = 40 cm. Find perimeter of the image Ans (90 + 15/10) cm We Note h Type 7. Two mirror problems Type 8. How to Concept If an object is placed between two mirrors, then infinite reflections will take pla Therefore, infinite images are formed. But normally position of second image is asked, S we have to apply mirror formula two times. Image from first mirror acts as an object for t second mirror. Sign convention for second reflection will change but sign of focal lengthw not change. With abov O Example 8 Focal length of convex mirror M, is 20 cm and that of concave mirror M, is 30 cm. Find position of second image I,. Take first reflection rom M. M1 M2 20 ст 10 cm...(Ques near pink mark)

asked Mar 2, 2020 by balaji.thirumalai
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