Merge pull request #26 from udohjeremiah/dev

Add questions for physics with electronics, wdu

src/app/past-questions-archive/wdu/page.jsx

@@ -9,6 +9,7 @@ const departments = {
     { name: "Management Sciences", route: "wdu/mgmsci" },
     { name: "Mathematics (Pure and Applied)", route: "wdu/mth" },
   ],
+  p: [{ name: "Physics With Electronics", route: "wdu/phywithelect" }],
 };
 
 export default function WesternDeltaUniversity() {

src/app/past-questions-archive/wdu/phywithelect/2022_2023/100-level/2nd-semester/page.jsx

@@ -0,0 +1,14 @@
+import LinkList from "@/components/LinkList";
+
+const courses = {
+  "": [
+    {
+      name: "PHY 104 - General Modern Physics",
+      route: "2nd-semester/phy104",
+    },
+  ],
+};
+
+export default function _2nd_semester() {
+  return <LinkList items={courses} isOrdered={true} />;
+}

src/app/past-questions-archive/wdu/phywithelect/2022_2023/100-level/2nd-semester/phy104/page.jsx

@@ -0,0 +1,165 @@
+import Questions from "@/components/Questions";
+import Answers from "@/components/Answers";
+
+export default function PHY104() {
+  return (
+    <Questions
+      school="western delta university"
+      college="natural and applied sciences"
+      department="physics with electronics"
+      session="2022/2023"
+      semester="second semester"
+      courseCode="PHY104"
+      courseTitle="General Modern Physics"
+      allowedTime="2hrs"
+      instruction="answer question ONE and any other TWO questions"
+    >
+      <li>
+        <h4 className="mb-2 font-bold">Question 1 (Compulsory)</h4>
+        <ol className="flex list-[lower-alpha] flex-col gap-2">
+          <li>
+            A tungsten filament consists of a cylindrical cathode 5cm long and
+            0.01cm in diameter. If the operating temperature is 2500K, find the
+            emission current density, given that the Richardson constant = 60.2
+            X 10<sup>4</sup> A/m<sup>2</sup>/K<sup>2</sup>, the work function ø
+            = 4.517eV <strong className="whitespace-nowrap">(7.5 marks)</strong>
+            <Answers questionNumber="1a" />
+          </li>
+          <li>
+            Sketch and briefly explain the graph for:
+            <ol className="mx-4 list-[lower-roman]">
+              <li>Kinetic energy versus frequency</li>
+              <li>Photocurrent versus intensity</li>
+            </ol>
+            <strong className="whitespace-nowrap">(6 marks)</strong>
+            <Answers questionNumber="1b" />
+          </li>
+          <li>
+            List <strong>three</strong> properties of Xray.{" "}
+            <strong className="whitespace-nowrap">(4.5 marks)</strong>
+            <Answers questionNumber="1c" />
+          </li>
+          <li>
+            Briefly explain why a radium sticker grows in the dark.{" "}
+            <strong className="whitespace-nowrap">(6 marks)</strong>
+            <Answers questionNumber="1d" />
+          </li>
+          <li>
+            Sketch the circuit symbols of an NPN and PNP transfer showing the
+            directions of the various currents.{" "}
+            <strong className="whitespace-nowrap">(6 marks)</strong>
+            <Answers questionNumber="1e" />
+          </li>
+        </ol>
+      </li>
+
+      <li>
+        <h4 className="mb-2 font-bold">Question 2</h4>
+        <ol className="flex list-[lower-alpha] flex-col gap-2">
+          <li>
+            Briefly explain photoelectric effect.{" "}
+            <strong className="whitespace-nowrap">(6 marks)</strong>
+            <Answers questionNumber="2a" />
+          </li>
+          <li>
+            Calculate the wavelength of a photon which has an energy of 2.4eV
+            (Plancks constant = 6.62 X 10<sup>-34</sup> Js, speed of light =
+            3X10<sup>8</sup>m/s){" "}
+            <strong className="whitespace-nowrap">(6.5 marks)</strong>
+            <Answers questionNumber="2b" />
+          </li>
+          <li>
+            Given that λ<sub>th</sub> is the threshold wavelength for
+            photoelectric effect to take place. If light of wavelength λ is
+            shone on a material, explain what happens when:
+            <ol className="mx-4 list-[lower-roman]">
+              <li>
+                λ &lt; λ<sub>th</sub>
+              </li>
+              <li>
+                λ &gt; λ<sub>th</sub>
+              </li>
+              <li>
+                λ = λ<sub>th</sub>
+              </li>
+            </ol>
+            <strong className="whitespace-nowrap">(7.5 marks)</strong>
+            <Answers questionNumber="2c" />
+          </li>
+        </ol>
+      </li>
+
+      <li>
+        <h4 className="mb-2 font-bold">Question 3</h4>
+        <ol className="flex list-[lower-alpha] flex-col gap-2">
+          <li>
+            Sketch and briefly explain the Bohrs model of an atom.{" "}
+            <strong className="whitespace-nowrap">(6 marks)</strong>
+            <Answers questionNumber="3a" />
+          </li>
+          <li>
+            Briefly discuss the two ways through which Xrays can be produced.{" "}
+            <strong className="whitespace-nowrap">(9 marks)</strong>
+            <Answers questionNumber="3b" />
+          </li>
+          <li>
+            An Xray tube works on 60,000V. Calculate the minimum wavelength of
+            the Xray emitted in it.{" "}
+            <strong className="whitespace-nowrap">(6 marks)</strong>
+            <Answers questionNumber="3c" />
+          </li>
+        </ol>
+      </li>
+
+      <li>
+        <h4 className="mb-2 font-bold">Question 4</h4>
+        <ol className="flex list-[lower-alpha] flex-col gap-2">
+          <li>
+            Radioactivity results from instability of the nucleus. Highlight the
+            conditions that can lead to this instability.{" "}
+            <strong className="whitespace-nowrap">(7.5 marks)</strong>
+            <Answers questionNumber="4a" />
+          </li>
+          <li>
+            Briefly explain Beta decay.{" "}
+            <strong className="whitespace-nowrap">(5 marks)</strong>
+            <Answers questionNumber="4b" />
+          </li>
+          <li>
+            The half-life period of radium is 1620 years. In how many years will
+            one gram of pure radium lose one centigram.{" "}
+            <strong className="whitespace-nowrap">(7.5 marks)</strong>
+            <Answers questionNumber="4c" />
+          </li>
+        </ol>
+      </li>
+
+      <li>
+        <h4 className="mb-2 font-bold">Question 5</h4>
+        <ol className="flex list-[lower-alpha] flex-col gap-2">
+          <li>
+            Write short notes on the following:
+            <ol className="mx-4 list-[lower-roman]">
+              <li>majority carriers</li>
+              <li>minority carriers</li>
+              <li>depletion layer</li>
+            </ol>
+            <strong className="whitespace-nowrap">(7.5 marks)</strong>
+            <Answers questionNumber="5a" />
+          </li>
+          <li>
+            With the aid of appropriate sketches with circuit symbols, briefly
+            explain forward and reverse bias for a PN junction diode.{" "}
+            <strong className="whitespace-nowrap">(5 marks)</strong>
+            <Answers questionNumber="5b" />
+          </li>
+          <li>
+            Briefly discuss the structure of a bipolar junction transistor.{" "}
+            <strong className="whitespace-nowrap">(7.5 marks)</strong>
+            <Answers questionNumber="5c" />
+          </li>
+        </ol>
+      </li>
+    </Questions>
+  );
+}

src/app/past-questions-archive/wdu/phywithelect/2022_2023/100-level/page.jsx

@@ -0,0 +1,9 @@
+import LinkList from "@/components/LinkList";
+
+const semesters = {
+  "": [{ name: "2nd Semester", route: "100-level/2nd-semester" }],
+};
+
+export default function _100_level() {
+  return <LinkList items={semesters} isOrdered={true} />;
+}

src/app/past-questions-archive/wdu/phywithelect/2022_2023/page.jsx

@@ -0,0 +1,9 @@
+import LinkList from "@/components/LinkList";
+
+const levels = {
+  "": [{ name: "100 Level", route: "2022_2023/100-level" }],
+};
+
+export default function _2022_2023() {
+  return <LinkList items={levels} isOrdered={true} />;
+}

src/app/past-questions-archive/wdu/phywithelect/page.jsx

@@ -0,0 +1,9 @@
+import LinkList from "@/components/LinkList";
+
+const sessions = {
+  "": [{ name: "2022/2023", route: "phywithelect/2022_2023" }],
+};
+
+export default function PhyWithElec() {
+  return <LinkList items={sessions} isOrdered={true} />;
+}